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

→ Avestan 𐬠𐬏𐬰𐬀 (cognate)
→ Breton bouc'h (inherited)
→ Welsh bwch (inherited)
→ French bouc (derived)
→ Scottish Gaelic boc (inherited)
→ Latin buccus (derived)
→ Old Irish boc (inherited)