Etymograph

English

theca

Theca comes from Latin thēca ‘a case, envelope, sheath’, from Ancient Greek τίθημι ‘put, set, place’, and ultimately from Proto-Indo-European *dʰeh₁-.

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁-1‘to put, place’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*dʰédʰeh₁ti1‘to be putting, placing’reconstructed
  3. Ancient Greekc. 800–300 BCEτίθημι1títhēmi‘put, set, place’
  4. Ancient Greekc. 800–300 BCEθήκη1thḗkē‘a case, box, receptacle’
  5. Latinc. 75 BCE–200 CEthēca1‘a case, envelope, sheath’
  6. Englishtodaytheca1

attested reconstructed ? uncertain or disputed deepest recorded ancestor

  1. 1 Wiktionary, English theca

Lineage

  1. Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁-Wiktionary, English theca‘to put, place’reconstructed
  2. Proto-Indo-Europeanc. 4500–2500 BCE*dʰédʰeh₁tiWiktionary, English theca‘to be putting, placing’reconstructed
  3. Ancient Greekc. 800–300 BCEτίθημιWiktionary, English thecatíthēmi‘put, set, place’
  4. Ancient Greekc. 800–300 BCEθήκηWiktionary, English thecathḗkē‘a case, box, receptacle’
  5. Latinc. 75 BCE–200 CEthēcaWiktionary, English theca‘a case, envelope, sheath’
  6. EnglishtodaythecaWiktionary, English theca

Linked words

through Proto-Indo-European *dʰeh₁- ‘to put, place’

do, fact, deal, hot, fair, defense, fan, benefit, fashion, feature, mid, defence, custom, sufficient, ethnic, theme, defendant, feast, treasurer, doom, deed, dis, aesthetic, ethical, synthetic, thesis, auditorium, theology, auditor, demi, deem, spade, forfeit, feral, ethic, fanatic, familial, medial, atheist, medallion, 123 more

through Proto-Indo-European *dʰédʰeh₁ti ‘to be putting, placing’

done, 1 more

through Ancient Greek τίθημι ‘put, set, place’

treasury, treasure, synthesis, thesaurus, epithet, 14 more

through Latin thēca ‘a case, envelope, sheath’

tick

Today it means

noun The pollen-producing organ usually found in pairs and forming an anther.

Sources

Sources: Wiktionary, “theca”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.

Etymograph / Proto-Indo-European *dʰeh₁- / theca

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