Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latgalian
sīva
←
Proto-Balto-Slavic
*śéiwāˀ
(inherited)
←
Proto-Indo-European
*ḱey-
(derived)
←
Latvian
sieva
(cognate)