Etymologically

Etymology and origin of the Old Norse word bók

bók1 book

Confidence
Probable
Formation
Inherited, Semantic loan
First attested
1150–1250 NRA norr fragm 81 A
Inherited from
Proto-Germanic *bōks
Ultimate origin
Proto-Germanic *bōks

Forms

bók f (genitive bókar or bǿkr, plural bǿkr) (strong consonant stem)[1]

Etymology

The word for the book is inherited from Proto-Germanic *bōks (“tablet of beechwood, book”).[2][1] The same noun is Gothic 𐌱𐍉𐌺𐌰 (bōka), plural “letter, book”, Old Saxon bōk (“writing tablet”), Old Frisian bōk, Old English bōc and Old High German buoh.[3][4]

Most etymologists take it to be the same word as bók2 “beech”.[5][4][6] Cleasby and Vigfússon thought the identity certain and noted that bókstafr properly means a beech twig;[5] Falk and Torp, Torp and Jóhannesson explain the book as a tablet of beechwood with runes carved in it, used at first in the plural.[4][3][7] Ásgeir Blöndal Magnússon likewise thinks of thin beech boards to scratch on, the book being named after its material as Ancient Greek βίβλος (bíblos) and Latin liber (“book; bast”) were.[6]

The Norse sense “book”, however, is held to come from Old English. Ásgeir Blöndal Magnússon thinks it probably came from bōc with Christianity and clerical learning,[6] Jóhannesson calls it a semantic loan from the Old English word,[7] and de Vries describes the inherited word as reshaped in meaning by it.[8] De Vries adds that a tablet of beechwood suits the word badly, since it names the foreign written book; he reports H. Kuhn's link with Proto-Germanic *baukna- (compare bákn), through “mark, sign” to “written letter”, and H. Rosenfeld's view of an early borrowing for the beechwood wax tablets used for letters.[8] Ásgeir Blöndal Magnússon thinks the link with ⟨bákn⟩ unlikely.[6]

Earliest recorded meaning

The earliest dated record in Menota is the plural bǿkr in the fragment NRA norr fragm 81 A, dated 1150–1250.[9] ONP's citations of 1200 already show the sense “book” itself: En þa es líþr líf þetta ... eige þarf þa bóc at lesa “But when this life passes ... then there is no need to read the book”.[10]

Semantic evolution

From the book as an object the word came to name a literary work, a volume of a longer work and, often in the plural, the older written authorities;[10] heilǫg bók was Holy Scripture.[10] The book on which oaths were sworn, the Bible or the Gospels, gave phrases such as vinna eið at bók “to swear an oath on the book”.[10][11] The book also stood for learning and for Latin: kenna á bók “to teach to read”, nema á bók “to study”, setja til bǿkr “to put to study”, kunna á bók “to know Latin”.[10][12] In Norway the book was above all the law code: Hertzberg's Norwegian laws use it of the lǫgbók,[13] and Zoëga names the codes lögbók and Jónsbók.[12] In the legal texts the word is more frequent than ONP's genre table expects.[10]

In a few Eddic poems bók is an embroidered or figured cloth, a bed cover: bǿkr þínar inar bláhvítu “your blue-white covers”.[14][15] Cleasby and Vigfússon took this for the earliest Scandinavian sense of the word,[5] and de Vries lists it under the book word.[8] Finnur Jónsson explains it from the thin beechwood slats used in weaving,[16] while Fischer counts it among the meanings borrowed in the Eddic poems.[17]

The word continues as Icelandic bók, Faroese bók, Norwegian bok, Swedish bok and Danish bog.[6][4]

Timeline

  • 1150–1250 – the plural bǿkr in the fragment NRA norr fragm 81 A.[9]
  • 1150 – bók and bækur in IcePaHC's First Grammar text, by its dating.[18]
  • 1200 – bóc “book” and the senses “work” and “written authority” in ONP's citations of 1200.[10]
  • 1200 – the book used in oath-taking, in ONP's citation of 1200.[10]
  • 1200–1225 – bók, bókinni and bókarinnar in the manuscript AM 677 4to.[19]

Meanings

Noun

  1. a book;[10][12] útan bǿkr “by heart”, setja á bǿkr “to commit to writing”.[10][12]
  2. a literary work.[10]
  3. a volume, one book of a longer work.[10]
  4. (often plural) an older written work, an authority;[10] heilǫg bók “Holy Scripture”.[10]
  5. (Christian, law) the holy book on which oaths are sworn, the Bible or the Gospels.[10][12]
  6. book-learning, study; the Latin language and its literature.[10][12][11]
  7. (law) a lawbook, law code.[10][12]
  8. (poetic) a cloth with figures woven or embroidered in it, a coverlet.[12][20][14]

Word family

  • bókstafr
  • bókfell
  • bóklærðr
  • bókmál
  • bókareiðr
  • bókrúnar
  • bókligr
  • bóklist
  • bóka
  • lǫgbók

Descendants

  • Icelandic bók[6]
  • Faroese bók[6]
  • Norwegian Nynorsk bok[6]
  • Swedish bok[6]
  • Danish bog[6]

bók2 beech

Confidence
Established
Formation
Inherited
First attested
1312
Inherited from
Proto-Germanic *bōkō
Ultimate origin
Proto-Indo-European *bʰeh₂ǵos

Forms

bók f (genitive bókar)[5]

Etymology

The word for the beech is inherited from Proto-Germanic *bōkō (“beech”).[1][2] It matches Old English bēce, Old Saxon bōk, Middle Low German bōke and Old High German buohha.[8][21] Outside Germanic it answers to Latin fāgus (“beech”), which agrees in meaning, and to Ancient Greek φηγός (phēgós, “a kind of oak”).[8][6] Pokorny's root is Proto-Indo-European *bʰāgós (“beech”).[2]

De Vries and Hellquist mention the usual link with Ancient Greek φαγεῖν (phageîn, “to eat”), which would make it the tree with edible fruit.[8][21] Ásgeir Blöndal Magnússon calls the further origin uncertain, as is which tree the word first named, and mentions a comparison with Kurdish and Russian names of the elm and the elder,[6] which Hellquist thinks surely wrong.[21] De Vries notes that the modern words Icelandic baukr (“box”) and Icelandic beyki (“beech”) point to a Germanic alternation of two vowel grades.[8]

Earliest recorded meaning

The tree is rare in the record: Cleasby and Vigfússon explain that Iceland had no beeches, and that the collective beyki is the more frequent word.[5] Bók “beech” stands in the þulur, the lists of poetic names.[16][11] ONP labels the word poetic and has one dated citation, from a boundary description of 1312: j sundit vidr Haugin ok Bokena “into the sound by the mound and the beech”.[10]

Timeline

  • 1312 – Bokena in a boundary description cited by ONP under the poetic bók “beech”.[10]

Meanings

Noun

  1. (poetic) a beech, beech tree.[12][16][10]

Word family

  • beyki

Descendants

  • Faroese bók[8]
  • Norwegian Nynorsk bøk[8]
  • Swedish bok[21]
  • Danish bøg[21]

References

  1. ^ a b c Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c Köbler, Gerhard (2014), Germanisches Wörterbuch, 5th ed., online, koeblergerhard.de/wikiling
  3. ^ a b Torp, Alf (1909), Wortschatz der germanischen Spracheinheit (Fick, Vergleichendes Wörterbuch der indogermanischen Sprachen, 4th ed., vol. 3), Göttingen, p. 271
  4. ^ a b c d Falk, Hjalmar; Torp, Alf (1910–1911), Norwegisch-dänisches etymologisches Wörterbuch, Heidelberg, p. s.v. bog
  5. ^ a b c d e Cleasby, Richard; Vigfússon, Guðbrandur (1874), An Icelandic-English Dictionary, Oxford: Clarendon Press, p. 73
  6. ^ a b c d e f g h i j k l Ásgeir Blöndal Magnússon (1989), Íslensk orðsifjabók, Reykjavík: Orðabók Háskólans, ordsifjabok.arnastofnun.is, p. s.v. bók
  7. ^ a b Jóhannesson, Alexander (1956), Isländisches etymologisches Wörterbuch, Bern, p. 955
  8. ^ a b c d e f g h i de Vries, Jan (1977), Altnordisches etymologisches Wörterbuch, 2nd ed., Leiden: Brill, p. 47
  9. ^ a b Menota: Medieval Nordic Text Archive, menota.org (texts by shelfmark; CC BY-SA 4.0), p. NRA norr fragm 81 A
  10. ^ a b c d e f g h i j k l m n o p q r s t Ordbog over det norrøne prosasprog / A Dictionary of Old Norse Prose, Copenhagen, onp.ku.dk (CC BY-SA 4.0), p. s.v. bók
  11. ^ a b c Fritzner, Johan (1886–1896), Ordbog over det gamle norske Sprog, 2nd ed., Kristiania, p. s.v. bók
  12. ^ a b c d e f g h i Zoëga, Geir T. (1910), A Concise Dictionary of Old Icelandic, Oxford: Clarendon Press, p. s.v. bók
  13. ^ Hertzberg, Ebbe (1895), Glossarium, in Norges gamle Love indtil 1387, vol. 5, Christiania, p. 106
  14. ^ a b Gering, Hugo (1903), Vollständiges Wörterbuch zu den Liedern der Edda, Halle: Waisenhaus, p. col. 118
  15. ^ Neckel, Gustav (1927), Edda: Die Lieder des Codex Regius, vol. 2: Kommentierendes Glossar, Heidelberg, p. 16
  16. ^ a b c Finnur Jónsson (1931), Lexicon Poeticum antiquæ linguæ septentrionalis, 2nd ed., Copenhagen: S. L. Møller, p. 58
  17. ^ Fischer, Frank (1909), Die Lehnwörter des Altwestnordischen, Palaestra 85, Berlin
  18. ^ Wallenberg, Joel C.; Ingason, Anton Karl; Sigurðsson, Einar Freyr; Rögnvaldsson, Eiríkur, Icelandic Parsed Historical Corpus, version 0.9
  19. ^ Menota: Medieval Nordic Text Archive, menota.org (texts by shelfmark; CC BY-SA 4.0), p. AM 677 4to
  20. ^ Faulkes, Anthony (2011), A New Introduction to Old Norse III: Glossary and Index of Names, 4th ed., London: Viking Society for Northern Research, p. s.v. bók
  21. ^ a b c d e Hellquist, Elof (1922), Svensk etymologisk ordbok, Lund, p. s.v. bok

Related etymologies

  • visk · also from Proto-Germanic
  • klubba · also from Proto-Germanic
  • hǫggva · also from Proto-Germanic
  • taka · also from Proto-Germanic
  • garðr · also from Proto-Germanic
  • geta · also from Proto-Germanic
  • draga · also from Proto-Germanic
  • flatr · also from Proto-Germanic
Cite this entry

“Bók.” Etymologically, 13 Nov. 2026, etymologically.com/non/b%C3%B3k. Accessed 14 Nov. 2026.

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