Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
hruška
←
Proto-Slavic
*gruša
(inherited)
←
Proto-Slavic
*gruša
(inherited(cs/zlw-ocs))
←
Old Czech
hruška
(inherited)
←
Old Czech
hrušě
(mention)
→
Czech
hrušeň
(affix)
→
Czech
hruškový
(affix)