Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
unk
←
Old English
unc
(inherited)
←
Old English
wit
(mention)
←
Proto-Germanic
*unk
(inherited)
←
Proto-Germanic
*wet
(mention)
←
Proto-Germanic
*unkiz
(mention)
←
Proto-Germanic
*wet
(mention)