Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
vacuity
←
English
vacuous
(affix)
←
English
-ity
(affix)
←
Proto-Indo-European
*h₁weh₂-
(root)
←
Latin
vacuitās
(derived)