Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Fijian
Okotova
←
Proto-Indo-European
*oḱtṓw
(derived)
←
Latin
octōber
(derived)
←
Latin
octō
(derived)
←
Latin
-bris
(mention)