Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Polish
strąk
←
Proto-Slavic
*strǫkъ
(inherited)
→
Polish
Stronk
(mention)
→
Polish
Stręk
(mention)
→
Polish
Strąk
(mention)