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

→ Old English siex (cognate)
→ North Frisian seeks (inherited)
→ North Frisian sös (derived)
→ North Frisian soks (derived)
→ West Frisian seis (inherited)
→ Old Norse sex (cognate)
→ Saterland Frisian säks (inherited)