English
fishwort
From fish + wort, from its fishy smell.
Proto-Indo-European *piskós
Proto-Germanic *fiskaz
Proto-West Germanic *fisk
Old English fisċ
Middle English fisch ‘an animal that inhabits the water or the meat…’
English fish
Proto-Indo-European *wréh₂ds ‘a root’
Proto-Germanic *wrōts ‘a root’
Proto-West Germanic *wurti ‘a root’
Old English wyrt ‘a plant’
Middle English wort ‘any herb or plant’
English wort
Today it means
noun Houttuynia cordata, a herbaceous perennial plant sometimes used as a herb.
Language periods are conventional ranges, not dates for this word.
Etymograph / fishwort