Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
-ečný
→
Czech
jednovaječný
(affix)
→
Czech
dvojvaječný
(affix)
→
Czech
fosforečný
(affix)