Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
smár
←
Proto-Germanic
*smēhaz
(inherited)
←
Old Norse
smár
(inherited)
→
Icelandic
smánykra
(affix)
→
Icelandic
smánetla
(affix)