simulacrum (n.)youdaoicibaDictYouDict[simulacrum 词源字典]
1590s, from Latin simulacrum "likeness, image, form, representation, portrait," dissimilated from *simulaclom, from simulare "to make like, imitate, copy, represent" (see simulation). The word was borrowed earlier as semulacre (late 14c.), via Old French simulacre.[simulacrum etymology, simulacrum origin, 英语词源]