tibia

Etymology

It is borrowed from Latin tībia (“shinbone; a pipe or flute”).^[2][3][4][5] The shinbone sense is the later one in Latin: Etymonline says the earlier meaning was a pipe or flute, originally one made of bone,^[3] and Partridge compares how αὐλός (aulós, “flute”) came to be used of other tube-like parts.^[6] The Latin word is of uncertain origin.^[7][8][6] De Vaan, quoted by Etymonline, finds no good Indo-European etymology and suggests the original sense may have been "stalk" or "shinbone", perhaps in a word borrowed from the same source as Ancient Greek σίφων (síphōn, “tube, siphon”);^[3] Merriam-Webster likewise refers it to siphon.^[9]

Earliest recorded meaning

A musical pipe: before 1398, in Trevisa's translation of Bartholomaeus, of a pipe made from elder wood.^[10] The anatomical sense, the part of the leg between knee and ankle, is in a medical text composed in 1392 and copied about 1475.^[10] Etymonline dates both senses to the late 14th century.^[3]

Semantic evolution

Although the word was used in Middle English,^[10][5] the OED's record of it begins only in the 18th century: the flute sense in Addison's Remarks on Italy (1705), and the anatomical sense in Alexander Monro's Anatomy (1726–41).^[2][7] Merriam-Webster dates the anatomical sense to about 1706,^[9] and Dictionary.com dates the word to 1685–95.^[11] The term was later applied to the corresponding part of the leg in animals, especially the tibiotarsus of birds (1826), and in entomology to a segment of an insect's leg (1815).^[2][5]

Timeline

• before 1398 – a musical pipe.^[10]
• c. 1475 – the part of the leg between the knee and the ankle, in a text composed in 1392.^[10]
• 1705 – an ancient flute or pipe.^[2]
• 1726–41 – the shinbone.^[2][7]
• 1815 – in insects, the segment of the leg between the femur and the tarsus.^[2]
• 1826 – the corresponding part of an animal's leg, especially a bird's.^[2]

Meanings

Noun

1. The inner and usually larger of the two bones of the lower leg, between the knee and the ankle; the shinbone.^[12][9][2] Its plural is tibiae or tibias.^[12]
2. The corresponding bone or part of the leg in other animals, especially the tibiotarsus of a bird.^[12][2]
3. In insects, the segment of the leg between the femur and the tarsus.^[12][2]
4. In ancient Greece and Rome, a reed pipe or flute.^[2][5]

Word family

• tibial

Related words

• fibula
• siphon

References

1. ^ Wiktionary, the free dictionary, https://en.wiktionary.org
2. ^ a b c d e f g h i j k Oxford English Dictionary Online (accessed March 2026), Oxford: Oxford University Press
3. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
4. ^ The American Heritage Dictionary of the English Language (online 2024), 5th ed., Boston: Houghton Mifflin Harcourt
5. ^ a b c d Shorter Oxford English Dictionary on Historical Principles (2002), 5th ed., ed. William R. Trumble and Angus Stevenson, Oxford: Oxford University Press
6. ^ a b Partridge, Eric (1966), Origins: A Short Etymological Dictionary of Modern English, 4th ed., London: Routledge & Kegan Paul
7. ^ a b c Barnhart, Robert K. (1988), The Barnhart Dictionary of Etymology
8. ^ Klein, Ernest. A Comprehensive Etymological Dictionary of the English Language. 2 vols. Amsterdam: Elsevier, 1966–1967.
9. ^ a b c Merriam-Webster Unabridged Dictionary (2024), online ed., Springfield, Mass.: Merriam-Webster
10. ^ a b c d e Kurath, Hans; Kuhn, Sherman M.; Lewis, Robert E., eds. (1952–2001), Middle English Dictionary, Ann Arbor: University of Michigan Press; online edition ed. Frances McSparran et al. (2000–2018)
11. ^ Dictionary.com Unabridged (2016), based on the Random House Unabridged Dictionary, New York: Random House
12. ^ a b c d Collins English Dictionary (2023), Glasgow: HarperCollins