Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
obstinacy
←
English
obstinate
(suffix)
←
English
cy
(suffix)
←
English
obstinance
(alter)
←
English
obstinancy
(alter)
←
Proto-Indo-European
*steh₂-
(root)