relevantyoudaoicibaDictYouDict[relevant 词源字典]
relevant: [16] Relevant comes ultimately from the present participle of Latin relevāre ‘raise’, source of English relief and relieve. The modern English sense ‘appropriate’ probably developed from a medieval application of relevāre to ‘take up’, hence ‘take possession of property’, which led to relevant being used as a legal term for ‘connected with’.
=> relief, relieve[relevant etymology, relevant origin, 英语词源]
relevant (adj.)youdaoicibaDictYouDict
"pertinent to the matter at hand," 1550s, from Middle French relevant "depending upon," originally "helpful," from Medieval Latin relevantem (nominative relevans), from stem of Latin relevare "to lessen, lighten" (see relieve). Not generally used until after 1800.