Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
variational
←
English
variation
(suffix)
←
English
al
(suffix)
→
English
variationally
(suffix)
→
English
nonvariational
(prefix)
→
English
covariational
(prefix)
→
English
hemivariational
(prefix)
→
English
bivariational
(prefix)
→
English
variationality
(suffix)