"small pie," 1710, from patti-pan (1690s) "something baked in a small pan," from French pâté, from Old French paste (see paste (n.)). Patty-pan "small pan in which pasties are bakes" is by 1710.
Entries linking to patty
paste n.
c. 1300 (mid-12c. as a surname), "dough for the making of bread or pastry," from Old French paste "dough, pastry" (13c., Modern French pâte), from Late Latin pasta "dough, pastry cake, paste" (see pasta). Meaning "glue mixture, dough used as a plaster seal" is attested from c. 1400; broader sense of "a composition just moist enough to be soft without liquefying" is by c. 1600. In reference to a kind of heavy glass made of ground quartz, etc., often used to imitate gems, by 1660s.