minnow (n.) Look up minnow at Dictionary.com
small freshwater fish, early 15c., probably related to Old English myne, earlier *mynwe, a name for some kind of fish, from Proto-Germanic *muniwon (cognates: Middle Low German möne, Dutch meun, Old High German muniwa, German Münne), of unknown origin, perhaps from PIE *men- "small." Perhaps influenced in Middle English by French menu "small."