Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*pr̥h₂wós
→
Bulgarian
първи
(inherited)
→
Kashubian
piérwi
(inherited)
→
Latvian
pirmais
(inherited)
→
Russian
первый
(inherited)
→
Old Polish
pierwy
(inherited)