Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English signet
← Old French signet (derived)
← Proto-Indo-European *sek- (root)
← Proto-Indo-European *sekʷ- (root)
← Latin signētum (mention)
← Latin signum (derived)

→ English sign (link)
→ English sennet (mention)
→ English signeted (suffix)