Where does “queixar-se” come from?

queixar-se (Catalan) comes from Vulgar Latin quassiare, from Latin quassāre, from Latin quatiō.

queixar-se (Catalan): to complain

Definitions

Step	Language	Word	Meaning
1	Vulgar Latin	quassiare	—
2	Latin	quassāre	—
3	Latin	quatiō	—

queixar-se — Etymology, Origin & Word History | Etymology Explorer