Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Turkic
*-u
→
Old Turkic
𐰆
(inherited)
→
Old Turkic
𐰇
(mention)
→
Turkish
-ı
(inherited)