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

→ Welsh haul (inherited)
→ Irish súil (mention)
→ Scottish Gaelic sùil (mention)
→ Manx sooill (mention)
→ Cornish howl (inherited)
→ Old Irish súil (mention)