Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Church Slavonic
мѣсѧць
←
Proto-Indo-European
*mḗh₁n̥s
(derived)
←
Proto-Slavic
*měsęcь
(inherited)
→
English
month
(cognate)
→
Latin
mensis
(cognate)
→
Latvian
mēnesis
(cognate)
→
Latvian
mēness
(cognate)