Where does “enfraquecer” come from?

enfraquecer (Portuguese) comes from Old Portuguese enfraquecer, from Old Portuguese en-, from Latin in-, from Latin in, from Old Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

enfraquecer (Portuguese): to weaken make weaker

Definitions

to weaken make weaker

Ancestry of “enfraquecer”, step by step

Step	Language	Word	Meaning
1	Old Portuguese	enfraquecer	—
2	Old Portuguese	en-	in-
3	Latin	in-	un-, non-, not; in, within, inside
4	Latin	in	in, at, on, upon, from; within, while in; into,...
5	Old Latin	en	in
6	Proto-Italic	en	in
7	Proto-Indo-European	h₁én	in

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