Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kalmyk
киитн
←
Buryat
хүйтэн
(cognate)
←
Mongolian
хүйтэн
(cognate)
←
Proto-Mongolic
*köiten
(inherited)
←
Written Oirat
ᡍᡅᠶᡅᡐᡄᠨ
(inherited)