Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
eacen
←
Old English
ēacan
(mention)
←
Proto-Germanic
*aukanaz
(inherited)
←
Proto-Germanic
*aukaną
(inherited)
←
Old Frisian
āken
(cognate)
←
Old Saxon
ōkan
(cognate)