Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
sannheilagr
←
Old Norse
saðr
(affix)
←
Old Norse
heilagr
(affix)
→
Old Norse
saðr
(link)