Where does “floorplate” come from?

floorplate (English) comes 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.

floorplate (English): A plate used as industrial flooring; A...

Definitions

  1. A plate used as industrial flooring; A...

Ancestry of “floorplate”, step by step

floorplate traces back through two separate lines of ancestry.

via English plate

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

via English floor

StepLanguageWordMeaning
1EnglishfloorThe interior bottom or surface of a house or...
2Middle EnglishflorA floor; the bottom surface of a room or...
3Old Englishflōrfloor, pavement, ground; floor, pavement, ground,...
4Proto-Germanicflōrazground; floor
5Proto-Indo-Europeanpleh₂rosflat; floor
6Proto-Indo-Europeanpleh₂-flat
Every word from Proto-Indo-European pleth₂-
floorplate — Etymology, Origin & Word History | Etymology Explorer