Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
hexangular
←
English
hex
(prefix)
←
English
angular
(prefix)
→
English
sexangle
(cognate)
→
English
hexangularly
(suffix)