Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Hungarian
sóhaj
←
Hungarian
sóhajt
(back-formation)
→
Hungarian
sóhajt
(affix)
→
Hungarian
sóhajok
(affix)