Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
renscur
←
Old English
reġn
(affix)
←
Old English
sċūr
(affix)
←
Old Norse
regnskúr
(cognate)