Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
entertaining
→
English
entertainingly
(suffix)
→
English
unentertaining
(prefix)
→
English
entertailing
(blend)
→
English
entertainingness
(suffix)
→
Portuguese
palhaço
(link)