Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Novgorodian
хѣрь
←
Proto-Slavic
*śěrъ
(inherited)
→
Irish
ciar
(cognate)
→
Scottish Gaelic
ciar
(cognate)