Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scots
ers
←
Old English
ears
(inherited)
←
Old English
ærs
(mention)
←
Middle English
ers
(inherited)
←
Middle English
ars
(mention)
←
Proto-Germanic
*arsaz
(inherited)
←
Proto-West Germanic
*ars
(inherited)