The story
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰéh₁s
- Proto-Indo-European*dʰh₁sós
- Proto-Hellenic*tʰehós
- Ancient Greekθεός (theós)
- Ancient Greekθεο- (theo-)
- Latintheo-
- Englishtheo-
- Proto-Indo-European*(s)peys-der.?
- Latinspīrō
- Latinspīritus
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Late Latinspīrituālis
- Old Frenchspiritue
- Middle Englishspiritual
- Englishspiritual
- English todaytheospiritual
Etymology from Wiktionary, CC BY-SA 4.0.