Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Prussian
gallū
←
Lithuanian
galva
(cognate)
←
Latvian
galva
(cognate)
←
Proto-Slavic
*golva
(cognate)