circumscription (n.)youdaoicibaDictYouDict[circumscription 词源字典]
1530s, from Latin circumscriptionem (nominative circumscriptio) "an encircling; fact of being held to set limits," noun of action from past participle stem of circumscribere (see circumscribe). Figurative sense of "setting limits of meaning" is earliest in English.[circumscription etymology, circumscription origin, 英语词源]