Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
groch
←
Proto-Slavic
*gorxъ
(inherited)
→
Polish
groszek
(mention)
→
Polish
grochówka
(suffix)
→
Polish
grochy
(mention)
→
Polish
Grochowy
(mention)