Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Turkmen
ak
←
Proto-Turkic
*āk
(inherited)
→
Southern Altai
ак
(cognate)
→
Bashkir
аҡ
(cognate)
→
Old Turkic
𐰀𐰴
(cognate)
→
Turkmen
ak öý
(compound)