Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Kalmyk
дуулх
←
Buryat
дуулаха
(cognate)
←
Mongolian
дуулга
(cognate)
←
Mongolian
дуулах
(cognate)
←
Kalmyk
дун
(link)
←
Proto-Mongolic
*dawu-la-
(inherited)
←
Written Oirat
ᡑᡇᡇ᠌ᠯᠠᡍᡇ
(inherited)
→
Buryat
дуулаха
(cognate)