Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Faroese
mánaður
←
Faroese
máni
(mention)
←
Proto-Germanic
*mēnōþs
(derived)
←
Proto-Indo-European
*mḗh₁n̥s
(derived)
←
Old Norse
mánaðr
(derived)
→
Faroese
máni
(mention)
→
Icelandic
mánuður
(cognate)