Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *peh₂ḱ-

English peace (derived)
English fair (derived)
English fang (derived)
English fang (derived)
Old English fegan (mention)
Czech pěkný (derived)
German fügen (mention)
Scottish Gaelic taic (derived)
Old High German fagar (derived)
Latin pax (mention)
Latin pactum (derived)
Latin paciscor (derived)
Old Saxon fagar (derived)
Sanskrit पाश (root)
Sanskrit पाश (mention)
Slovak pekný (derived)
Old Armenian աստեմ (mention)