Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Azerbaijani
otaq
←
Proto-Turkic
*ōtag
(inherited)
←
Proto-Turkic
*ōt
(inherited)
←
Proto-Turkic
*ōta-
(inherited)
→
Azerbaijani
otaqda
(suffix)
→
Persian
اتاق
(cognate)