Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mongolian
агаар
←
Buryat
агаар
(cognate)
←
Classical Mongolian
ᠠᠭᠤᠷ
(inherited)
←
Kalmyk
аһар
(cognate)
←
Khamnigan Mongol
агаар
(cognate)
←
Proto-Mongolic
(inherited)
←
Middle Mongolian
(inherited)
→
Buryat
агаар
(cognate)
→
Kalmyk
аһар
(cognate)