Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Scottish Gaelic bàta
Old English bāt (derived)
Irish bád (cognate)
Manx baatey (cognate)
Middle Irish bát (inherited)

Irish bád (cognate)
Scottish Gaelic bàta-luath (affix)
Manx baatey (cognate)