Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Saxon
*swak
→
Norwegian Bokmål
svak
(derived)
→
Norwegian Nynorsk
svak
(derived)
→
Plautdietsch
schwak
(inherited)
→
Swedish
svag
(derived)