Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
abelgan
←
Old English
ā
(prefix)
←
Old English
belgan
(prefix)
←
Proto-Indo-European
*bʰelǵʰ-
(root)