English
fouler
From foul + -er.
A compound of foul + -er
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
Today it means
noun One who fouls.
Language periods are conventional ranges, not dates for this word.
Etymograph / fouler