Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
periodi
→
Finnish
periodiopetus
(affix)
→
Finnish
periodeittain
(affix)
→
Finnish
periodityö
(affix)
→
Finnish
periodinen
(affix)