Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
heahflod
←
Old English
hēah
(affix)
←
Old English
flōd
(affix)
←
Old Norse
háflæðr
(cognate)