pizza (n.)
1935, from Italian pizza, originally "cake, tart, pie," of uncertain origin. The 1907 "Vocabolario Etimologico della Lingua Italiana" reports it is said to be from dialectal pinza "clamp" (from Latin pinsere "to pound, stamp"). Klein suggests a connection with Medieval Greek pitta "cake, pie" (see pita). Watkins says it is from a Germanic source akin to Old High German bizzo, pizzo "bite, morsel," from Proto-Germanic *biton- (see bit (n.1)).