Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*gaganą
→
English
gain
(mention)
→
Middle English
gayn
(derived)
→
Faroese
gagn
(mention)
→
Icelandic
gagn
(mention)
→
Swedish
gagn
(mention)