Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latvian sapnis
← Proto-Balto-Slavic *swápnas (inherited)
← Proto-Indo-European *swep- (root)
← Proto-Indo-European *swépnos (inherited)

→ Greek ύπνος (cognate)
→ Latvian sapņains (suffix)
→ Latvian sapņot (mention)
→ Old Norse svefn (cognate)