Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
sjómaður
←
Icelandic
sjór
(affix)
←
Icelandic
maður
(affix)
→
Old English
sæmann
(cognate)