Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
southeast
→
English
southeaster
(suffix)
→
English
southeastward
(suffix)
→
English
southeastwards
(suffix)
→
English
southeastmost
(suffix)