Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Manx ard-ayr
← Irish ardathair (cognate)
← Scottish Gaelic àrd-athair (cognate)
← Manx ard- (affix)
← Manx ayr (affix)

→ Irish ardathair (cognate)
→ Scottish Gaelic àrd-athair (cognate)
→ Manx ard-ayroil (suffix)