Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Irish gaol
← Proto-Celtic *gailos (inherited)
← German geil (cognate)
← Gothic 𐌲𐌰𐌹𐌻𐌾𐌰𐌽 (cognate)
← Lithuanian gailΓΉs (cognate)
← Middle Irish gΓ‘el (inherited)

β†’ Irish gaolmhar (affix)
β†’ Irish neasghaol (prefix)