ritualyoudaoicibaDictYouDict[ritual 词源字典]
ritual: [16] Ritual was borrowed from Latin rītuālis, a derivative of rītus ‘religious or other ceremony or practice’ (from which, via Old French rite, English gets rite [14]). It may have been related to Sanskrit rīti- ‘going, way, custom’.
=> rite[ritual etymology, ritual origin, 英语词源]
ritual (adj.)youdaoicibaDictYouDict
1560s, from Middle French ritual or directly from Latin ritualis "relating to (religious) rites," from ritus "rite" (see rite). Related: Ritually.
ritual (nj.)youdaoicibaDictYouDict
1640s, from ritual (adj.).