English
foulbrood
From foul + brood.
Proto-Indo-European *puH- ‘foul, rotten’
Proto-Germanic *fūlaz ‘foul, rotten’
Proto-West Germanic *fūl ‘foul, dirty’
Old English fūl ‘foul, dirty, unclean, impure, vile, corrupt,…’
Middle English ffoul
English foul
Proto-Indo-European *bʰreh₁- ‘breath, mist, vapour, steam’
Proto-Germanic *brōduz ‘heat, breeding’
Old English brōd
Middle English brood
English brood
Today it means
noun A bacterial disease of bees.
Language periods are conventional ranges, not dates for this word.
Etymograph / foulbrood