Where does “infrainguinal” come from?

infrainguinal (English) comes from English infra, from Latin infra, from Latin īnferā, from French inférer, from Latin īnferō, from Latin īn-, from Latin în, from Latin en — in.

infrainguinal (English): Below the inguinal ligament or canal

Definitions

Below the inguinal ligament or canal

Ancestry of “infrainguinal”, step by step

infrainguinal traces back through two separate lines of ancestry.

via English infra

Step	Language	Word	Meaning
1	English	infra	Discussed later; Infrastructure
2	Latin	infra	below
3	Latin	īnferā	—
4	French	inférer	to infer
5	Latin	īnferō	to carry, bring, put, place, or throw in, into, to, or upon somewhere or something; insert
6	Latin	īn-	un-, non-, not
7	Latin	în	in, at, on, upon, from (space)
8	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
9	Proto-Italic	en	in
10	Proto-Indo-European	h₁én	in

via English inguinal

Step	Language	Word	Meaning
1	English	inguinal	Of or pertaining to the groin
2	Latin	inguinālis	inguinal
3	Latin	inguen	groin; privates
4	Proto-Indo-European	h₁n̥gʷ-en-	—

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →