The story
- Proto-Italic*wre-
- Latinre-
- Old Frenchre-
- Middle Englishre-
- Englishre-
- 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 todayrespiritualize
From re- + spiritualize.
Etymology from Wiktionary, CC BY-SA 4.0.