Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
stig
←
Proto-Indo-European
*steygʰ-
(root)
←
Old Norse
stíga
(mention)
→
Westrobothnian
steg
(inherited)
→
Norwegian Nynorsk
steg
(derived)
→
Old Norse
ástig
(prefix)