Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*peyǵ-
→
English
fike
(derived)
→
Old English
fician
(derived)
→
Latin
piger
(derived)
→
Latin
pignus
(derived)
→
Latin
piget
(root)
→
Latin
piget
(derived)
→
Latin
piguus
(mention)
→
Latin
pigeo
(root)
→
Latin
pigeo
(derived)