英语词源字典 - 在线词源网站

accomplished (adj.)[accomplished 词源字典]: late 15c., "perfect as a result of training," past participle adjective from accomplish (v.). Meaning "completed" is from late 14c.[accomplished etymology, accomplished origin, 英语词源]
polished (adj.): late 14c., "made smooth;" early 15c., "elegant;" past participle adjective from polish (v.).
unaccomplished (adj.): 1520s, "not finished," from un- (1) "not" + past participle of accomplish (v.). Meaning "not furnished with social or intellectual accomplishments" is from 1729 (see accomplished).
unpolished (adj.): late 14c., from un- (1) "not" + past participle of polish (v.). In reference to style, language, etc., attested from late 15c.
unpublished (adj.): c. 1600, from un- (1) "not" + past participle of publish. In reference to an author, attested from 1934.