dissemination (n.)youdaoicibaDictYouDict[dissemination 词源字典]
1640s, from Latin disseminationem (nominative disseminatio) "a scattering of seed, a sowing," noun of action from past participle stem of disseminare (see disseminate). Or perhaps a native noun formation from disseminate.[dissemination etymology, dissemination origin, 英语词源]