plagio-youdaoicibaDictYouDict[plagio- 词源字典]
before vowels plagi-, word-forming element meaning "slanting, oblique," from comb. form of Greek plagios "oblique, slanting," from plagos "side," from PIE *plag- "flat, spread," from *plak- (1) "to be flat" (see placenta).[plagio- etymology, plagio- origin, 英语词源]