Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Bulgarian
сега
←
Old Church Slavonic
сьга
(inherited)
←
Old Church Slavonic
сєга
(mention)
←
Old Church Slavonic
сєгꙑ
(mention)
←
Proto-Slavic
*sьgъda
(inherited)
→
Bulgarian
сегашен
(affix)
→
Bulgarian
досега
(compound)