Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Welsh caill
Breton - (cognate)
Proto-Brythonic *köll (inherited)
Ancient Greek κολεός (derived)
Cornish kell (cognate)
Latin coleus (derived)
Middle Welsh keill (inherited)

English hail (cognate)
Breton kell (cognate)
Welsh ceillgwd (affix)
Welsh ceilliau (affix)
Cornish kell (cognate)