Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Russian
вы́дра
→
English
otter
(cognate)
→
Ancient Greek
ὕδρα
(cognate)
→
Latvian
ūdrs
(mention)
→
Russian
гидра
(doublet)