Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
West Frisian wjirm
← Proto-Germanic *wurmiz (inherited)
← Old Frisian werm (inherited)

→ English worm (cognate)
→ German Wurm (cognate)
→ North Frisian wörem (cognate)
→ West Frisian ierdwjirm (affix)
→ Dutch worm (cognate)