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

→ Welsh mis (inherited)
→ Irish mí (inherited)
→ Scottish Gaelic mìos (derived)
→ Manx mee (inherited)
→ Latvian mēnesis (mention)
→ Latvian mēness (mention)
→ Old Irish mí (inherited)