Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
náhlý
←
Proto-Slavic
*naglъ
(inherited)
→
Czech
náhlost
(suffix)
→
Czech
unáhlit
(affix)