Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Latin Helvetius
Gaulish -elu (derived)
Gaulish etu- (mention)
Proto-Celtic *elu (derived)
Proto-Indo-European *pelh₁u- (derived)
Old Irish íath (cognate)

Latin Helvetia (mention)
Latin Ricina (mention)