The story
- Old English · inherited frombealluc“testicle”
- Middle English · inherited fromballok
- English todaybollock
From Middle English ballok, from Old English bealluc (“testicle”, literally “little ball”). By surface analysis, ball + -ock.
Words from the same roots
Old Englishbealluc all →
balk
Etymology from Wiktionary, CC BY-SA 4.0.