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

English threat (cognate)
Icelandic tugþraut (compound)
Icelandic fimmtarþraut (compound)