Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Icelandic -i
Proto-Germanic *-į̄ (inherited)
Gothic -𐌴𐌹 (cognate)

Icelandic fjölbreytni (affix)
Icelandic landi (mention)
Icelandic hittni (affix)
Icelandic fælni (affix)