The story
- Proto-Indo-European*de
- Proto-Indo-European*déh₁
- Proto-Italic*dē
- Latindē
- Latindē-
- Englishde-
- Proto-Indo-European*(s)peys-der.?
- Latinspīrō
- Latinspīritus
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Late Latinspīrituālis
- Old Frenchspiritue
- Middle Englishspiritual
- Englishspiritual
- Englishspiritualize
- English todaydespiritualize
From de- + spiritualize.
Etymology from Wiktionary, CC BY-SA 4.0.