Where does “flaterie” come from?

flaterie (Middle English) comes from Old French flaterie, from Old French flater, from Frankish flat, from Proto-Germanic flatą, from Proto-Indo-European plÁt-.

Ancestry of “flaterie”, step by step

StepLanguageWordMeaning
1Old Frenchflaterie—
2Old Frenchflaterto flatter; to seduce with words
3Frankishflatpalm, flat of the hand; flat
4Proto-Germanicflatą—
5Proto-Indo-EuropeanplÁt-—
Every word from Proto-Indo-European plÁt- →Every word from Proto-Germanic flatą →Every word from Frankish flat →