Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
необходи́мый
→
Bulgarian
необходим
(borrowed)
→
Russian
необходимость
(affix)
→
Russian
необходимо
(affix)
→
Ukrainian
необхідний
(cognate)