Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
lokkur
←
Proto-Germanic
*lukkaz
(inherited)
←
Old Norse
lokkr
(inherited)
→
Alemannic German
lokha
(cognate)
→
Icelandic
eyrnalokkur
(affix)