Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Breton pezh

→ Welsh peth (cognate)
→ Irish cuid (cognate)
→ Scottish Gaelic cuid (cognate)
→ Manx cooid (cognate)
→ Cornish peth (cognate)
→ Cornish pyth (cognate)
→ Old Irish cuit (cognate)