Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scanian
regna
←
Proto-Germanic
*rekanōną
(derived)
←
Middle Low German
rēkenen
(derived)
←
Old Norse
reikna
(inherited)
←
Old Saxon
*rekenōn
(derived)