Where does “infirmarius” come from?

infirmarius (Latin) comes from Latin infirmaria, from Latin īnfirmus, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

infirmarius (Latin): somebody who tends for the sick in a hospital, a nurse

Definitions

somebody who tends for the sick in a hospital, a nurse

Ancestry of “infirmarius”, step by step

Step	Language	Word	Meaning
1	Latin	infirmaria	hospital
2	Latin	īnfirmus	weak, feeble
3	Latin	īn-	un-, non-, not
4	Latin	în	in, at, on, upon, from (space)
5	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
6	Proto-Italic	en	in
7	Proto-Indo-European	h₁én	in

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