Where does “kors” come from?

kors (Middle English) comes from Old English cors — curse.

Ancestry of “kors”, step by step

kors traces back through two separate lines of ancestry.

via Old English cors

StepLanguageWordMeaning
1Old Englishcorscurse

via Old English curs

StepLanguageWordMeaning
1Old Englishcurscurse
Every word from Old English cors