Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Middle English
untrewe
←
Old English
untrīewe
(inherited)
←
Middle English
un
(prefix)
←
Middle English
trewe
(prefix)
←
Proto-Germanic
*untriwwiz
(inherited)
←
Proto-West Germanic
*untriuwī
(inherited)
→
English
untrue
(inherited)
→
Middle English
trewe
(link)