Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mongolian
баруун
→
Mongolian
баруунтан
(suffix)
→
Tuvan
барыын
(cognate)
→
Kalmyk
барун
(cognate)