Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kalmyk
күзүн
←
Mongolian
хүзүү
(cognate)
←
Dongxiang
ghuzhun
(cognate)
←
Proto-Mongolic
*küjüxün
(inherited)