Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Mongolian
тулалдаан
←
Buryat
тулалдаа
(cognate)
←
Mongolian
тулалдах
(suffix)
←
Mongolian
аан
(suffix)
←
Kalmyk
туллдан
(cognate)