Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
чайка
←
Bulgarian
ча-ча
(mention)
←
Estonian
kajakas
(cognate)
←
Latvian
kaija
(cognate)
←
Proto-Slavic
*čajьka
(inherited)