Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old East Slavic
ꙗзъ
←
Proto-Indo-European
*éǵh₂
(inherited)
←
Proto-Slavic
*(j)azъ
(inherited)
→
Latvian
es
(cognate)
→
Ukrainian
я
(inherited)