The story
- Proto-Indo-European*(s)peys-der.?
- Latinspīrō
- Latinspīritu
- Old Frenchespirit
- Middle Englishspirit
- Englishspirit
- Proto-Indo-European*pleh₁-
- Proto-Indo-European*pl̥h₁nós
- Proto-Germanic*fullaz
- Englishspiritful
- English todayspiritfully
Etymology from Wiktionary, CC BY-SA 4.0.