English
theologus
Theologus comes from Latin theologus ‘theologian’, from Ancient Greek θεός ‘god’, and ultimately from Proto-Indo-European *dʰeh₁- ‘to do’.
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁-1‘to do’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰéh₁s1‘god, godhead, deity’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰh₁sós1reconstructed
- Proto-Hellenicc. 2200–1600 BCE*tʰehós1‘god, deity’reconstructed
- Ancient Greekc. 800–300 BCEθεός2‘god’
- Ancient Greekc. 800–300 BCEθεολόγος3‘one who talks about the gods, theologian’
- Latinc. 75 BCE–200 CEtheologus4‘theologian’
- Englishtodaytheologus4
attested reconstructed ? uncertain or disputed deepest recorded ancestor
- 1 Wiktionary, Ancient Greek θεός
- 2 Wiktionary, Ancient Greek θεολόγος
- 3 Wiktionary, Latin theologus
- 4 Wiktionary, English theologus
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰeh₁-Wiktionary, Ancient Greek θεός‘to do’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰéh₁sWiktionary, Ancient Greek θεός‘god, godhead, deity’reconstructed
- Proto-Indo-Europeanc. 4500–2500 BCE*dʰh₁sósWiktionary, Ancient Greek θεόςreconstructed
- Proto-Hellenicc. 2200–1600 BCE*tʰehósWiktionary, Ancient Greek θεός‘god, deity’reconstructed
- Ancient Greekc. 800–300 BCEθεόςWiktionary, Ancient Greek θεολόγος‘god’
- Ancient Greekc. 800–300 BCEθεολόγοςWiktionary, Latin theologus‘one who talks about the gods, theologian’
- Latinc. 75 BCE–200 CEtheologusWiktionary, English theologus‘theologian’
- EnglishtodaytheologusWiktionary, English theologus
Linked words
through Proto-Indo-European *dʰeh₁- ‘to do’
do, fact, deal, hot, defense, fan, benefit, fashion, feature, mid, defence, sufficient, custom, treasury, theme, treasure, ethnic, defendant, ethical, doom, tick, deed, aesthetic, thesis, synthetic, auditorium, auditor, demi, deem, ethic, spade, forfeit, familial, medial, ethos, medallion, prefect, certify, thematic, duma, 111 more
through Proto-Indo-European *dʰéh₁s ‘god, godhead, deity’
fair, feast, dis, feral, fanatic, profanity, profane, fane, fayre, 21 more
through Proto-Hellenic *tʰehós ‘god, deity’
monotheism, polytheism, pantheism, 14 more
through Ancient Greek θεός ‘god’
Today it means
noun Synonym of theologian (“Roman Catholic lecturer”).
Sources
Sources: Wiktionary, “theologus”; the older steps come from the Wiktionary entries for Ancient Greek θεός, Ancient Greek θεολόγος, Latin theologus. 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- / theologus