Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh carn
← Proto-Celtic *karnos (inherited)
← Proto-Indo-European *ḱerh₂- (inherited)

→ English cairn (cognate)
→ English Treffgarne (mention)
→ Breton Karnag (cognate)
→ Welsh Cernyw (cognate)
→ Welsh carnedd (affix)
→ Latin Carnutes (cognate)