Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
окно
←
Proto-Slavic
*okъno
(inherited)
→
Esperanto
-o
(mention)
→
Finnish
akkuna
(cognate)
→
Udmurt
укно
(mention)