Etymology

The term "pizza" first appeared "in a Latin text from the southern Italian town of Gaeta in 997 AD, which claims that a tenant of certain property is to give the bishop of Gaeta 'duodecim pizze' ['twelve pizzas'] every Christmas Day, and another twelve every Easter Sunday".^[1][3]
The origins of the word are uncertain and disputed. Suggested etymologies include:

• The Ancient Greek word πικτή (pikte), "fermented pastry", which in Latin became "picta", and Late Latin pitta > pizza. See Greek pitta bread and Apulia and Calabria cuisine "Pitta"
• The Ancient Greek word πίσσα (pissa, Attic πίττα, pitta), "pitch",^[4][5] or ptea, "bran", (pétítés, "bran bread").^[6]
• The Latin word “pinsa”, the past participle of the verb “pinsere” which means to pound or to crush and may refer to the flattening out of the dough.
• The Latin word “picea” which describes the blackening of bread in the oven or the black ash that gathers at the bottom of the oven.
• The Italian word “pizzicare” meaning “to pluck” and refers to pizza being “plucked” quickly from the oven (“Pizzicare” was derived from an older Italian word "pizzo" meaning “point”).^[7]
• The Old High German word “bizzo” or “pizzo” meaning “mouthful” (related to the English words “bit” and “bite”) and was brought to Italy in the middle of the 6th century AD by the invading Lombards.^[8] This is the origin favored by the Oxford English Dictionary though the entry notes that it is unattested.^[9]