Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
stýfa
←
Proto-Germanic
*stūfijaną
(inherited)
←
Icelandic
stúfur
(mention)
←
Old Norse
stýfa
(inherited)
←
Old Norse
stúfr
(mention)
→
Icelandic
stýfa úr hnefa
(mention)