Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Icelandic lykill
Proto-Germanic *lukilaz (inherited)
Old Norse lykill (inherited)

Icelandic lyklaborð (affix)
Icelandic lyklabarn (affix)
Icelandic g-lykill (mention)
Icelandic dreifilykill (prefix)
Icelandic einkalykill (prefix)
Icelandic friggjarlykill (affix)
Icelandic lykilorð (affix)
Icelandic bíllykill (affix)
Norwegian Bokmål nøkkel (cognate)