neighborly (adj.)youdaoicibaDictYouDict[neighborly 词源字典]
1550s, from neighbor (n.) + -ly (1). Earlier as an adverb (1520s), while an earlier adjective form was neighborlike (late 15c.). Related: Neighborliness, which ousted earlier neighborship (mid-15c.).[neighborly etymology, neighborly origin, 英语词源]