Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
eventus
←
Latin
ēveniō
(affix)
←
Latin
-tus
(affix)
→
English
eventuate
(mention)
→
Portuguese
eventual
(derived)