Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English -logist
English -logy (suffix)
English ist (suffix)
Proto-Indo-European *leǵ- (root)

English laryngologist (affix)
English lexicologist (affix)
English bacteriologist (affix)
English ferroequinologist (cognate)
English oenologist (affix)
English andrologist (affix)
English palæanthropologist (affix)
English phytologist (affix)
English organologist (affix)
English hippologist (affix)
English melittologist (affix)
Armenian -բան (mention)