Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English sesquipedal
English sesqui (prefix)
English pedal (prefix)
Proto-Indo-European *ped- (root)
Latin sesquipedalis (borrowed)

English sesquipedalian (suffix)
English sesquipedality (suffix)
English sesquipedalism (suffix)