Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Finnish
peri
→
Finnish
periaate
(prefix)
→
Finnish
perisynti
(prefix)
→
Finnish
perikuva
(prefix)
→
Finnish
perikato
(prefix)
→
Finnish
perikardiitti
(prefix)
→
Finnish
periamerikkalainen
(prefix)