Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Slavic
*elenь
→
Bulgarian
елен
(inherited)
→
Czech
jelen
(inherited)
→
Macedonian
елен
(inherited)
→
Polish
Olenkowicz
(mention)
→
Polish
Olenkiewicz
(mention)
→
Polish
Oleniacz
(mention)