Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Icelandic gagn
Proto-Germanic *gagną (derived(is/fo))
Proto-Germanic *gagną (derived)
Proto-Germanic *gaganą (mention)
Proto-Germanic *gagana (mention)
Proto-Germanic *ga- (mention)
Proto-Indo-European *ḱóm (derived(is/fo))
Proto-Indo-European *ḱóm (derived)
Old Norse gagn (derived(is/fo))
Old Norse gagn (derived)

English gain (cognate)
Icelandic gagnsemi (suffix)
Icelandic sönnunargagn (compound)
Icelandic gagnlegur (suffix)
Icelandic gagnrýna (compound)
Icelandic gagntaka (compound)