Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mongolian
босох
←
Dongxiang
bosi
(cognate)
←
Proto-Mongolic
*bos-
(inherited)
→
Mongolian
бослого
(suffix)