Where does “escuser” come from?

escuser (Old French) comes from Latin excūsō, from Latin causa, from Old Latin caussa, from Proto-Indo-European kawd-teh₂.

escuser (Old French): to excuse oneself; to make excuses

Definitions

Step	Language	Word	Meaning
1	Latin	excūsō	—
2	Latin	causa	cause, reason; case, claim, contention; motive,...
3	Old Latin	caussa	cause, reason, purpose; case, claim; Archaic form...
4	Proto-Indo-European	kawd-teh₂	—

escuser — Etymology, Origin & Word History | Etymology Explorer