Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
swart
←
Proto-Germanic
*swartaz
(inherited)
←
Proto-West Germanic
*swart
(inherited)
→
Old English
sweart
(cognate)
→
German
schwatt
(derived)
→
Old High German
swarz
(cognate)
→
German Low German
swart
(inherited)
→
German Low German
schwart
(inherited)
→
Plautdietsch
schwoat
(inherited)