Where does “infradigital” come from?

infradigital (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.

infradigital (English): below a digit

Definitions

below a digit

Ancestry of “infradigital”, step by step

infradigital 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 digital

Step	Language	Word	Meaning
1	English	digital	Having to do with digits (fingers or toes); especially, performed with a finger
2	Latin	digitālis	Of or belonging to the finger
3	Latin	digitus	a finger, toe, digit; a twig
4	Proto-Indo-European	deyḱ-	to point out

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