English
threadfish
From thread + fish.
Proto-Indo-European *terh₁- ‘rub’
Proto-Indo-European *treh₁-tu-s
Proto-Germanic *þrēduz ‘thread’
Old English þrǣd
Middle English thred
English thread
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
Today it means
noun A cutlassfish (Trichiuridae).
Sources
Sources: Wiktionary, “threadfish”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / threadfish