Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
taen
←
Old English
þæġn
(derived)
←
Old English
þeġen
(mention)
←
Old English
þeġn
(mention)
←
Middle English
thane
(derived)
←
Middle English
thein
(mention)
←
Middle English
theign
(mention)
←
Proto-West Germanic
*þegn
(derived)