Where does “aspiren” come from?

aspiren (Middle English) comes from Old French aspirer, from Latin aspīrō, from Latin ad-, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

Ancestry of “aspiren”, step by step

Step	Language	Word	Meaning
1	Old French	aspirer	—
2	Latin	aspīrō	to breathe or blow upon
3	Latin	ad-	to; usually prefixed to verbs, in which cases it...
4	Latin	īn-	un-, non-, not
5	Latin	în	in, at, on, upon, from (space)
6	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
7	Proto-Italic	en	in
8	Proto-Indo-European	h₁én	in

Words derived from “aspiren”

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Latin ad- →