1958, colloquial shortening of progressive (q.v.). Earlier it was British student slang for proctor (1890) and earlier still a cant word for "food, provisions" (1650s), perhaps from verb prog "to poke about" (1610s), of unknown origin, perhaps related to prod (v.). Related: Progged; progging.
双语例句
1. Press PROG button to set the program mode.
按PROG按钮以设置编程方式.
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2. Prog for show register to output RS.
登记册的进展显示输出遥感.
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3. As a management tool, it can list goals and ways to measure prog . progress.
