Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
swarm
←
Old English
swearm
(inherited)
←
Proto-Germanic
*swarmaz
(inherited)
→
English
swarm
(inherited)
→
Middle English
swarmen
(affix)