Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Latin
pergō
→
Latin
ergo
(mention)
→
Latin
perge
(mention)
→
Latin
pergens
(mention)
→
Latin
perrecturus
(mention)
→
Latin
perrectus
(mention)
→
Latin
pergendus
(mention)