Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bashkir
икәү
←
Southern Altai
экӱ
(cognate)
←
Kazakh
екеу
(cognate)
←
Kumyk
экев
(cognate)
←
Kyrgyz
экөө
(cognate)
←
Proto-Turkic
*ẹk(k)i
(derived)
←
Undetermined
*ekägü
(mention)
→
Karachay-Balkar
экеу
(cognate)