Where does “platinaggio” come from?

platinaggio (Italian) comes from Italian platinare, from Italian platino, from Italian platina, from French platine, from French plat, from Middle French plat, from Old French plat, from Vulgar Latin plattus — flat.

Ancestry of “platinaggio”, step by step

StepLanguageWordMeaning
1Italianplatinareto platinize; to dye or bleach the hair platinum...
2Italianplatinoplatinum; first-person singular present...
3Italianplatinaplaten; Alternative form of platino; inflection...
4Frenchplatineplatinum; platter; turntable
5Frenchplatflat; a flat area of ground; a flat thing; a flat...
6Middle Frenchplatflat
7Old Frenchplata footbridge
8Vulgar Latinplattusflattened; flat; smooth
9Ancient Greekπλατύςwide, broad; flat, level; broad-shouldered
10Proto-Indo-Europeanpléth₂usflat, broad
11Proto-Indo-Europeanpleth₂-flat
Every word from Proto-Indo-European pleth₂-Every word from Proto-Indo-European pléth₂usEvery word from Ancient Greek πλατύς