soreyoudaoicibaDictYouDict[sore 词源字典]
sore: [OE] Sore comes from a prehistoric Germanic *sairaz ‘painful, pained’, which was related to Irish Gaelic sāeth ‘affliction, sickness’ and possibly Latin saevus ‘fierce’. It was borrowed into Finnish as sairas ‘ill’. The adverbial use of sore as an intensive (as in ‘sore afraid’) has now died out, but it survives in the related German sehr ‘very’. The word’s ancestral connotations were of mental as well as physical pain, and while sore has preserved the latter, the derivative sorry has kept to the former.
=> sorry[sore etymology, sore origin, 英语词源]
pain (v.)youdaoicibaDictYouDict
c. 1300, "to exert or strain oneself, strive; endeavor," from Old French pener (v.) "to hurt, cause pain," from peine, and from Middle English peine (n.); see pain (n.). Transitive meaning "cause pain; inflict pain" is from late 14c. That of "to cause sorrow, grief, or unhappiness" also is from late 14c. Related: Pained; paining.