Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scots
aye
←
Old English
ā
(cognate)
←
Old Norse
ei
(derived)
←
Old Norse
ey
(mention)
→
Scots
ay
(mention)