participant (adj.)youdaoicibaDictYouDict[participant 词源字典]
1540s, from Latin participantem (nominative participans), present participle of participare "to share in, partake of," from particeps "sharing, partaking" (see participation).[participant etymology, participant origin, 英语词源]
participant (n.)youdaoicibaDictYouDict
1560s, from Middle French participant, from Latin participantem (nominative participans), present participle of participare "to share in, partake of" from particeps "sharing, partaking" (see participation).