Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
sam-
←
Proto-Germanic
*samaz
(inherited)
←
Proto-Indo-European
*sem-
(root)
←
Proto-Indo-European
*somHós
(inherited)
→
Faroese
sam-
(inherited)
→
Norwegian Bokmål
sam-
(inherited)
→
Norwegian Nynorsk
sam-
(inherited)
→
Old Norse
samligr
(affix)