Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
sprekan
←
Proto-West Germanic
*sprekan
(inherited)
→
Old English
gesprecan
(cognate)
→
Old High German
sprehhan
(cognate)
→
Low German
spreken
(inherited)
→
Old Saxon
gisprekan
(prefix)