photocopy (v.)youdaoicibaDictYouDict[photocopy 词源字典]
1924 in the sense of "make a photographic reproduction," from photo- "photographic" + copy (v.). The usual modern meaning arose 1942 with the advent of xerography. The noun is recorded from 1934. Related: Photocopied; photocopying.[photocopy etymology, photocopy origin, 英语词源]