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shabby [shabby 词源字典]: shabby: [17] Etymologically, shabby means ‘scabby’. It comes from a now obsolete shab, which denoted ‘scab’, and also metaphorically ‘disreputable fellow’. It was the native equivalent to Old Norse *skabbr ‘scab’, from which English gets scab.
=> scab[shabby etymology, shabby origin, 英语词源]
cabbie (n.): also cabby, "cab-driver," 1859, from cab (n.) + -ie. Also see taxi (n.).
gruff (adj.): 1530s, of physical things, "coarse, coarse-grained," from Middle Dutch or Middle Low German grof "coarse (in quality), thick, large," of uncertain origin, regarded by some as related to Old English hreof, Old Norse hrjufr "rough, scabby," with Germanic completive prefix ga-. Of manners, "rough, surly," by 1690s. Related: Gruffness.