Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Romansch cumanzar
Latin com- (inherited)
Latin initiō (mention)

Catalan començar (cognate)
Spanish comenzar (cognate)
French commencer (cognate)
Old French comencier (cognate)
Franco-Provençal comenciér (cognate)
Italian cominciare (cognate)
Occitan començar (cognate)
Portuguese começar (cognate)
Romansch cumenzament (suffix)
Romansch cumanzamaint (suffix)