Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
kwiecień
←
Proto-Slavic
*květьnь
(inherited)
→
Polish
kwietniowy
(affix)
→
Polish
Kwiecień
(mention)
→
Russian
цветень
(cognate)
→
Ukrainian
квітень
(cognate)