Where does “brevità” come from?

brevità (Italian) comes from Latin brevitās, from Latin brevis, from Proto-Italic *breɣʷis, from Proto-Indo-European mréǵʰus, from Proto-Indo-European mreǵʰ- — short.

brevità (Italian): shortness, brevity, concision

Definitions

shortness, brevity, concision

Ancestry of “brevità”, step by step

Step	Language	Word	Meaning
1	Latin	brevitās	shortness; narrowness
2	Latin	brevis	short, small, little, narrow; brief, short;...
3	Proto-Italic	*breɣʷis	—
4	Proto-Indo-European	mréǵʰus	short; brief
5	Proto-Indo-European	mreǵʰ-	short

Every word from Proto-Indo-European mreǵʰ- →Every word from Proto-Indo-European mréǵʰus →Every word from Proto-Italic *breɣʷis →