Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Norse
ᚦᛋᛁᛋᛉ
←
Proto-Germanic
*sa
(mention)
←
Proto-Germanic
*þai
(mention)
←
Proto-Norse
ᚦᚱᛁᛃᛟᛉ
(mention)
→
Old Norse
þær
(inherited)