Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*mēþą
→
English
math
(inherited)
→
English
lattermath
(inherited)
→
Old English
mæþ
(inherited)
→
German
Mahd
(inherited)