Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Scottish Gaelic Dia
Proto-Celtic *dēwos (inherited)
Proto-Indo-European *dyew- (root)
Old Irish día (inherited)

Welsh Duw (cognate)
Scottish Gaelic dia-mhaslachadh (compound)
Scottish Gaelic dia-àicheadh (compound)
Cornish Duw (cognate)