Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
unsyfre
←
Old English
un
(prefix)
←
Old English
sȳfre
(prefix)
←
German
unsauber
(cognate)
←
Dutch
onzuiver
(cognate)