Where does “guerdon” come from?

guerdon (Middle English) comes from Old French guerdon, from Medieval Latin widerdonum, from Latin widerlonum.

Ancestry of “guerdon”, step by step

Step	Language	Word	Meaning
1	Old French	guerdon	Alternative form of guerredon
2	Medieval Latin	widerdonum	—
3	Latin	widerlonum	—

guerdon — Etymology, Origin & Word History | Etymology Explorer