Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
река
←
Bulgarian
зарека
(link)
←
Bulgarian
изрека
(link)
←
Bulgarian
нарека
(link)
←
Bulgarian
обрека
(link)
←
Bulgarian
отрека
(link)
←
Bulgarian
предрека
(link)
←
Bulgarian
реч
(link)
←
Bulgarian
речев
(link)
←
Bulgarian
речник
(link)
←
Bulgarian
речовит
(link)
←
Proto-Slavic
*rěka
(inherited)