Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
оток
←
Bulgarian
о-
(affix)
←
Bulgarian
ток
(affix)
←
Bulgarian
изток
(link)
←
Bulgarian
отток
(link)
←
Bulgarian
поток
(link)
←
Bulgarian
приток
(link)
←
Bulgarian
проток
(link)
←
Bulgarian
отека
(cognate)
←
Bulgarian
отичам
(mention)
←
Bulgarian
отик
(alter)
←
Bulgarian
тека
(link)
←
Bulgarian
тичам
(link)
←
Bulgarian
точа
(link)
←
Bulgarian
тек
(link)
←
Bulgarian
ток
(link)
←
Proto-Slavic
*o(b)tokъ
(inherited)
←
Proto-Slavic
*o(b)tekъ
(inherited)
←
Proto-Slavic
*o(b)tokъ
(mention)