Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latgalian
tu
←
Proto-Balto-Slavic
*tū
(inherited)
←
Proto-Indo-European
*túh₂
(inherited)
←
Lithuanian
tu
(cognate)
←
Latvian
tu
(cognate)