Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*knēaną
→
English
know
(inherited)
→
Icelandic
knega
(inherited)
→
Old Norse
kná
(inherited)
→
Old Saxon
knaian
(inherited)