Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English obtund
English ob- (affix)
English obtuse (mention)
Proto-Indo-European *(s)tewd- (root)
Latin obtundo (mention)
Latin ob- (mention)
Latin tundo (mention)

English obtuse (mention)
English obtunder (suffix)
English obtundity (suffix)