Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
Romanian reduce
French réduire (borrowed)
Latin reducere (borrowed)
Romanian duce (mention)
Romanian arăduce (doublet)

Romanian duce (link)
Romanian reducere (suffix)
Romanian redus (mention)
Romanian arăduce (doublet)
Romanian reducător (suffix)