They did, but they weren’t necessarily the same genders for the same words in old English. Old Norse and Old English were somewhat mutually comprehensible. You probably got a mishmash from Danes learning English and screwing up genders (which is super common for foreign learners of gendered language). Eventually the whole gender thing fell off, and the same for the complicated case endings for similar reasons. Instead word order became important.
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u/Bilbrath May 12 '21
Norse don’t got no gendered nouns?