The story
- Proto-Indo-European*h₁én
- Proto-Italic*en
- Proto-Italic*en-
- Latinin-
- Proto-Indo-European*(s)peys-der.?
- Latinspīrō
- Latinīnspīrō
- Old Frenchespirer
- Old Frenchenspirer
- Middle Englishenspiren
- Englishinspire
- English todayinspirer
Etymology from Wiktionary, CC BY-SA 4.0.