Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
æfa
←
Proto-Germanic
*ōbijaną
(mention)
→
Icelandic
æfing
(suffix)
→
Icelandic
andæfa
(prefix)