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 *srognā

English frown (mention)
Breton fri (derived)
Welsh ffroen (inherited)
Irish srón (inherited)
Scottish Gaelic sròn (inherited)
Galician enfurruñar (derived)
Ancient Greek ῥύγχος (mention)
Manx stroin (derived)
Old Irish srón (inherited)