Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Ukrainian
сир
←
Proto-Slavic
*syrъ
(inherited)
→
Latvian
siers
(cognate)
→
Ukrainian
сирник
(affix)