Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
rept-
←
English
reptile
(link)
←
English
reptology
(link)
←
English
reptilology
(link)
←
English
irreption
(link)
←
English
obreption
(link)
←
Latin
rēpere
(link)