Where does “doorplate” come from?

doorplate (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.

doorplate (English): A plaque mounted on a door, bearing information...

Definitions

  1. A plaque mounted on a door, bearing information...

Ancestry of “doorplate”, step by step

doorplate 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 door

StepLanguageWordMeaning
1EnglishdoorA portal of entry into a building, room, or...
2Middle EnglishdoreA door or gate structure barring an entrance
3Old Englishdorabumblebee
4Proto-Germanicdurôbumblebee, humming insect
5Proto-Indo-Europeandʰer-to support; to hold
Every word from Proto-Indo-European pleth₂-
doorplate — Etymology, Origin & Word History | Etymology Explorer