Where does “grassus” come from?

grassus (Vulgar Latin) comes from Latin crassus, from Old Latin cartsus, from Proto-Italic kartsus, from Proto-Indo-European kr̥t-sú-s, from Proto-Indo-European kert-, from Proto-Turkic *keŕ-.

Ancestry of “grassus”, step by step

Step	Language	Word	Meaning
1	Latin	crassus	dense, thick, solid; fat, gross, plump;...
2	Old Latin	cartsus	—
3	Proto-Italic	kartsus	—
4	Proto-Indo-European	kr̥t-sú-s	—
5	Proto-Indo-European	kert-	times; to weave, twist together; time
6	Proto-Turkic	*keŕ-	—

Words derived from “grassus”

foie gras
engrasar
grasa
foie gras
graso
ingrassatura
grasse
ingrassare
ingrassatore
grassezza
grassaggio
grassa
semigrasso
grasso
sgrassaggio
sgrassare
sgrassatura
фуа-гра
foie gras
gras
grasseyer
graxo
foie gras
フォアグラ

Every word from Proto-Turkic *keŕ- →

grassus — Etymology, Origin & Word History | Etymology Explorer