Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
periodically
←
English
periodic
(suffix)
←
English
ally
(suffix)
→
English
nonperiodically
(prefix)
→
English
photoperiodically
(prefix)
→
English
nanoperiodically
(prefix)