Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Celtic *druwits

English druid (derived)
Old English dry (derived)
Welsh dryw (inherited)
Welsh derwydd (inherited)
French druide (derived)
Irish draoi (inherited)
Scottish Gaelic draoidh (inherited)
Manx druaight (inherited)
Latin Druidae (derived)
Polish druid (derived)
Old Irish druí (inherited)