Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
inobservable
←
English
in-
(affix)
←
English
observable
(affix)
←
French
inobservable
(cognate)
←
Latin
inobservabilis
(derived)