Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
swoti
←
Proto-West Germanic
*swōtī
(inherited)
←
Old Saxon
swōti
(affix)
←
Old Saxon
-ī
(affix)