Where does “mercè” come from?

mercè (Catalan) comes from Latin mercēs, from Latin merx, from Proto-Italic *merks.

mercè (Catalan): thanks

Definitions

Step	Language	Word	Meaning
1	Latin	mercēs	—
2	Latin	merx	merchandise, commodity; goods, wares
3	Proto-Italic	*merks	—

mercè — Etymology, Origin & Word History | Etymology Explorer