Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
Þórður
←
Old Norse
Þórðr
(inherited)
←
Old Norse
Þórr
(mention)
←
Old Norse
friðr
(mention)
→
Icelandic
þórðargleði
(mention)