Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Welsh tant
← Proto-Celtic *tantā (inherited)
← Irish téad (cognate)
← Proto-Indo-European *ten- (derived)

→ Old English þennan (cognate)
→ Irish téad (cognate)
→ Icelandic þenja (cognate)
→ Old Irish tét (cognate)