2、co-, 强调。-op, 做，劳作，词源同operate, opus.原指大量做出来的，后指复印出来的，副本。
2、copy:  Copy has a very devious semantic history. It comes from Latin copia ‘abundance’ (source also of English copious), and came into English via Old French copie. In addition to its central sense ‘abundance’, Latin copia could also mean ‘power, right’, and it appears that its use in such phrases as ‘give someone the right to transcribe’ led to its application to ‘right of reproduction’ and ultimately to simply ‘reproduction’.=> copious
4、early 14c.,"written account or record,"from Old French copie (13c.), from Medieval Latin copia"reproduction, transcript,"from Latin copia"plenty, means"(see copious). Sense extended 15c. to any specimen of writing (especially MS for a printer) and any reproduction or imitation. Related: Copyist.
6、late 14c., from Old French copier (14c.), from Medieval Latin copiare"to transcribe,"originally"to write in plenty,"from Latin copia (see copy (n.)). Hence,"to write an original text many times."Related: Copied; copying. Figurative sense of"to imitate"is attested from 1640s.