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

→ Welsh bach (inherited)
→ Welsh bychan (inherited)
→ Welsh bych (inherited)
→ Spanish pequeño (cognate)
→ Irish beag (inherited)
→ Scottish Gaelic beag (inherited)
→ Galician pequeno (cognate)
→ Manx beg (inherited)
→ Old Irish bec (inherited)