Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Upper Sorbian
mrowja
←
Proto-Slavic
*morvъ
(inherited)
←
Proto-Slavic
*morvi
(mention)
→
Kashubian
marwa
(cognate)