- doughty[doughty 词源字典]
- doughty:  Doughty originally had the rather general sense ‘worthy, virtuous’ – ‘brave’ is a secondary specialization. It comes from late Old English dohtig, an unexplained variant of an earlier Old English dyhtig, which appears to have derived ultimately from a prehistoric Germanic *duhtiz ‘ability, capacity’. This in turn came from a verb *dugan ‘be able or strong’, which itself came into Old English and survived dialectally until the 19th century as dow ‘be able to do something’ or ‘thrive’.
[doughty etymology, doughty origin, 英语词源]
- doughty (adj.)
- Old English dohtig "competent, good, valiant," from dyhtig "strong," related to dugan "to be fit, be able, be strong," and influenced by its past participle, dohte.
All from Proto-Germanic *duhtiz- (cognates: Middle High German tühtec, German tüchtig, Middle Dutch duchtich), from PIE *dheugh- "to be fit, be of use, proper" (cognates: German Tugend "virtue," Greek teukhein "to make ready," Irish dual "becoming, fit," Russian dužij "strong, robust"). Rare after 17c.; in deliberately archaic or mock-heroic use since c. 1800. If it had survived, its modern form would be dighty.