Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Old Saxon ahto
← Proto-Germanic *ahtōu (inherited)
← Proto-Germanic *ahtōu (inherited)
← Proto-West Germanic *ahtō (inherited)
← Proto-Indo-European *oḱtṓw (inherited)

→ Old English eahta (cognate)
→ German Low German acht (inherited)
→ Dutch Low Saxon acht (inherited)