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

→ Faroese tarvur (cognate)
→ Faroese tørvur (cognate)
→ Icelandic þarfaþing (affix)
→ Norwegian Bokmål tarv (cognate)
→ Norwegian Nynorsk torv (cognate)
→ Swedish tarv (cognate)