Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
ástig
←
Proto-Indo-European
*steygʰ-
(root)
←
Old Norse
á
(prefix)
←
Old Norse
stig
(prefix)