Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Czech
onen
←
Czech
onam
(mention)
←
Czech
onde
(mention)
←
Czech
ondy
(mention)
←
Czech
onehdy
(mention)
←
Czech
onak
(mention)
←
Czech
zaonačit
(mention)
←
Proto-Slavic
*onъ
(derived)
→
Czech
onde
(mention)
→
Czech
ondy
(mention)