Where does “plainteine” come from?

plainteine (Anglo-Norman) comes from Old French plaintain, from Latin plantāgō, from Latin planta, from Proto-Italic plāntā, from Proto-Indo-European pléh₂-n̥t-eh₂, from Proto-Indo-European pleh₂- — flat.

Ancestry of “plainteine”, step by step

StepLanguageWordMeaning
1Old Frenchplaintain—
2Latinplantāgōthe plantain, especially the greater plantain
3Latinplantaany vegetable production that serves to propagate...
4Proto-Italicplāntā—
5Proto-Indo-Europeanpléh₂-n̥t-eh₂—
6Proto-Indo-Europeanpleh₂-flat

Words derived from “plainteine”

Every word from Proto-Indo-European pleh₂- →Every word from Proto-Indo-European pléh₂-n̥t-eh₂ →Every word from Proto-Italic plāntā →