Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Indo-European
*lewbʰ- (cut off)
→
English
leaf
(root)
→
English
library
(root)
→
English
libel
(root)
→
English
libro-
(root)