Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
ка́сса
→
Belarusian
каса
(cognate)
→
Ido
kaso
(borrowed)
→
Russian
кассовый
(affix)
→
Ukrainian
каса
(cognate)