Where does “inerzia” come from?

inerzia (Italian) comes from Latin inertia, from Latin iners, from Latin īn-, from Latin în, from Latin en, from Proto-Italic en, from Proto-Indo-European h₁én — in.

inerzia (Italian): inertia (all senses)

Definitions

inertia (all senses)

Ancestry of “inerzia”, step by step

Step	Language	Word	Meaning
1	Latin	inertia	want of art or skill, unskillfulness, ignorance;...
2	Latin	iners	without skill, unskilled, unskillful,...
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 →