Where does “platyfish” come from?

platyfish (English) comes from English platy, from English plate, from Old French plate, from Medieval Latin plata, from Vulgar Latin plattus, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us, from Proto-Indo-European pleth₂- — flat.

platyfish (English): Certain fish of the genus "Xiphophorus" lacking a...

Definitions

  1. Certain fish of the genus "Xiphophorus" lacking a...

Ancestry of “platyfish”, step by step

platyfish traces back through two separate lines of ancestry.

via English platy

StepLanguageWordMeaning
1EnglishplatyResembling plates; Of a field semy of plates;...
2EnglishplateA slightly curved but almost flat dish from which...
3Old Frenchplatea flat metal disk; a flat plate of armor
4Medieval Latinplatasilver
5Vulgar Latinplattusflattened; flat; smooth
6Ancient Greekπλατύςwide, broad; flat, level; broad-shouldered
7Proto-Indo-Europeanpléth₂usflat, broad
8Proto-Indo-Europeanpleth₂-flat

via English Fish

StepLanguageWordMeaning
1EnglishFishThe constellation and zodiacal sign Pisces
2Frenchfichecard; plug; first-person singular present...
3Frenchficherto plug in; to drive something in by its point,...
4Old Frenchfichierto pierce
5Vulgar Latin*fīgicāre
6Latinfīgōto fasten, fix
7Proto-Italicfeigʷōto insert; to fasten
Every word from Proto-Indo-European pleth₂-Every word from Proto-Indo-European pléth₂usEvery word from Ancient Greek πλατύς