Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
dust
←
Old English
dūst
(inherited)
←
Old English
*dust
(inherited)
←
Proto-Germanic
*dunstą
(inherited)
←
Proto-Germanic
*dustą
(derived)
→
English
dust
(inherited)
→
Middle English
dusty
(affix)
→
Irish
dusta
(derived)