Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
tactful
←
English
tact
(suffix)
←
English
ful
(suffix)
←
Proto-Indo-European
*teh₂g-
(root)
→
English
tactfully
(suffix)
→
English
untactful
(prefix)
→
English
tactfulness
(suffix)