circumjacent (adj.)youdaoicibaDictYouDict[circumjacent 词源字典]
late 15c., from Latin circumiacens, present participle of circumiacere "to border upon, to lie round about, enjoin," from circum- "around" (see circum-) + iacere "to throw, cast, hurl" (see jet (v.)). Related: Circumjacence; circumjacency.[circumjacent etymology, circumjacent origin, 英语词源]