Where does “rentament” come from?

rentament (Catalan) comes from Catalan rentar, from Old Catalan reentar, from Latin recentāre, from Latin recēns, from Proto-Indo-European ḱen- — to set oneself in motion, arise.

rentament (Catalan): washing

Definitions

washing

Ancestry of “rentament”, step by step

Step	Language	Word	Meaning
1	Catalan	rentar	to wash; to wash up
2	Old Catalan	reentar	—
3	Latin	recentāre	—
4	Latin	recēns	new, recent, lately, newly, green, refreshed
5	Proto-Indo-European	ḱen-	to set oneself in motion, arise

Every word from Proto-Indo-European ḱen- →Every word from Latin recēns →Every word from Latin recentāre →