Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Southern Altai
ат
←
Proto-Turkic
*āt
(inherited)
←
Proto-Turkic
*at
(inherited)
→
Tofa
аът
(cognate)
→
Kazakh
ат
(cognate)
→
Tuvan
аът
(cognate)