Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
occasive
←
English
occasion
(mention)
←
Latin
occasivus
(derived)
←
Latin
occasus
(mention)
←
Latin
occidere
(mention)