Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Lower Sorbian
pisaś
←
Proto-Indo-European
*peyḱ-
(derived)
←
Proto-Slavic
*pьsati
(inherited)
←
Proto-Slavic
*pisati
(mention)
→
Lower Sorbian
napis
(mention)
→
Upper Sorbian
pisać
(cognate)