Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English rigorous
Proto-Indo-European *reyǵ- (root)
Latin rigorosus (mention)

English rigorousness (suffix)
English rigorously (suffix)
English unrigorous (prefix)
English nonrigorous (prefix)
English overrigorous (prefix)