This page provides all possible meanings and translations of the word pye
(the pastry food).
1747: A Cheshire Pork Pye for Sea uE000285842uE001 Hannah Glasse, The Art of Cookery Made Plain and Easy, 1747 (quoted in Acquired Tastes: Celebrating Australia's Culinary History, Colin Bannerman (and others), published by the National Library of Australia, 1998, ISBN 0-642-10693-2, page 1.)
see 2d Pie (b)
Pye Ltd. was an electronics company founded in Cambridge, England now wholly owned by Philips.