Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
hjälm
←
Proto-Germanic
*helmaz
(inherited)
←
Old Swedish
hiælmber
(inherited)
←
Old Norse
hjalmr
(inherited)
→
Swedish
cykelhjälm
(compound)
→
Swedish
skyddshjälm
(affix)
→
Swedish
motorcykelhjälm
(affix)