Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English doughty
Old English dohtiġ (inherited)
Old English dyhtiġ (mention)
Danish dygtig (cognate)
German tüchtig (cognate)
English dought (suffix)
English y (suffix)
Middle English doughti (inherited)
Middle English douȝty (mention)
Proto-West Germanic *duhtīg (inherited)
Proto-Indo-European *dʰewgʰ- (root)
Proto-Indo-European *dʰewgʰ- (derived)
Icelandic dygðugur (cognate)
Dutch duchtig (cognate)
Scots douchty (cognate)
Scots douchtie (mention)
Swedish duktig (cognate)

English bold (link)
English douth (link)
English dought (back-formation)
English doughtily (suffix)
English doughtiness (suffix)
English Doughty (mention)
English undoughty (prefix)
Danish dygtig (cognate)
Danish gæv (link)
German tüchtig (cognate)
German Unducht (cognate)
Luxembourgish dichteg (cognate)
Dutch duchtig (cognate)
Swedish duktig (cognate)
Old Armenian յանդուգն (cognate)