Etymologically

sero

Etymology and origin of the Latin word sero

Confidence
Established
Formation
Inherited
First attested
Plautus
Inherited from
Proto-Italic *sise/o-
Ultimate origin
Proto-Indo-European (*seh₁-)
Etymology tree
inherited borrowed derived
Latin sero
Latin series
English series

Pronunciation

  • IPA (Classical): [ˈsɛ.roː][1]
  • IPA (Ecclesiastical): [ˈsɛː.ro][1]

Forms

serō (present infinitive serere, perfect active sēvī, supine satum); third conjugation[1]

Etymology

It is inherited from Proto-Italic *sise/o- (“to sow”), inherited from Proto-Indo-European *si-sh₁-e/o-, a reduplicated present of the root *seh₁- “to sow”.[2][1] The reduplicated *sis- became *sir- and then /ser-/, with /i/ lowered before /r/, while the perfect sēvī and the participle satum continue the plain root.[2] Cognate with Lithuanian sėti (“to sow”), Gothic 𐍃𐌰𐌹𐌰𐌽 (saian, “to sow”) and Old English sāwan (“to sow”).[2][3] The noun sēmen “seed” is from the same root.[2][4]

Earliest recorded meaning

De Vaan dates it from Plautus.[2] Caecilius has a farmer who plants trees that will profit another generation.[3] Köbler dates Plautus c. 250–184 BC and Caecilius 230/220–168 BC.[5]

Semantic evolution

It meant to plant seeds or seedlings in the ground, and also to sow land with a crop, as Cicero counts the acres sown.[3] Its past participle satus was used of persons “begotten, born” of a parent, and figuratively it meant to sow the seeds of something, to foment trouble or start a quarrel.[3][6]

The noun of action satiō “a sowing” became Old French seison “sowing time, right moment” and so English season about 1300.[4] dissēminō, from sēmen, gave English disseminate about 1600.[4]

Timeline

  • c. 250–184 BC – Plautus uses it.[2][5]
  • 230/220–168 BC – Caecilius speaks of planting trees for a later generation.[3][5]
  • 81–43 BC – Cicero speaks of land sown with a crop.[3][5]
  • c. 1300 – English season is recorded, from satiō through French.[4]

Meanings

Verb

  1. To plant, sow (seeds or seedlings).[3]
  2. To sow (land) with a crop.[3]
  3. (chiefly in the participle satus) To beget, engender, satus, born of.[3]
  4. (figurative) To sow the seeds of, foment, start (a quarrel, rumour).[3][6]

Word family

  • disserō
  • obserō
  • reserō
  • Sēribibī
  • omnisatus
  • asserō
  • circumserō
  • cōnserō
  • dēserō
  • īnserō
  • interserō
  • perserō

Usage notes

Three other words share the spelling: serō, serere, seruī, sertum “to link, string together”, inherited from Proto-Indo-European *ser-, from which come series and sermō, serō, serāre “to bolt”, from sera “bar”; and the adverb sērō “late, too late”, from sērus.[2][3]

References

  1. ^ a b c d Wiktionary, the free dictionary, https://en.wiktionary.org
  2. ^ a b c d e f g de Vaan, Michiel (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden Indo-European Etymological Dictionary Series 7, Leiden; Boston: Brill
  3. ^ a b c d e f g h i j k Glare, P. G. W., ed. (2012), Oxford Latin Dictionary, 2nd ed., Oxford: Oxford University Press
  4. ^ a b c d Harper, Douglas. Online Etymology Dictionary, https://www.etymonline.com
  5. ^ a b c d Köbler, Gerhard (2010), Lateinisches Abkunfts- und Wirkungswörterbuch für Altertum und Mittelalter, online ed., koeblergerhard.de
  6. ^ a b Gaffiot, Félix (2016), Dictionnaire latin-français, new ed. by Gérard Gréco et al. (Gaffiot 2016), online ed.

Derived terms

Related etymologies

  • minor · also from Proto-Indo-European
  • maior · also from Proto-Indo-European
  • medius · also from Proto-Indo-European
  • centum · also from Proto-Indo-European
  • specio · also from Proto-Indo-European
  • caedo · also from Proto-Indo-European
  • quattuor · also from Proto-Indo-European
  • venio · also from Proto-Indo-European
Cite this entry

“Sero.” Etymologically, 16 Oct. 2026, etymologically.com/la/sero. Accessed 16 Oct. 2026.

Last edited on . ·