Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
Cthulhu
←
English
chthonic
(mention)
→
English
Cthulhic
(suffix)
→
English
Cthulhuesque
(suffix)