flat, thin, regularly (not necessarily circular) shaped object · A flat, fairly large serving plate, or (by extension) the food served on it. · Various short forms:
köken: From Middle High German platte, from Old High German platta (ca. 900), from Vulgar Latin *platta, *plattus, from Ancient Greek πλατύς (platús, “wide; flat”). Doublet of Plätte and Pläte.
slab, bar, sheet, tablet (piece of material with uniform cross-section) · paving slab, flagstone · slab of concrete forming horizontal component of a building
Uncertain; several possibilities exist. Probably ultimately from Latin findere, through an alteration of its past participle fissus into a form *fictus > *fectus, later becoming feminine. (Compare the change from fixus to fitto). An alternative may be a Vulgar Latin *offetta (“little piece”), diminutive of offa. Compare Galician and Portuguese fita, Dalmatian fiata, Sicilian feḍḍa, Sardinian…