Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
Olga
←
Proto-Germanic
*hailagaz
(derived)
←
Old Norse
heilagr
(derived)
←
Polish
Helga
(doublet)
←
Russian
О́льга
(borrowed)
→
Polish
Helga
(doublet)