Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
fleiri
→
Danish
flere
(inherited)
→
Westrobothnian
flair
(inherited)
→
Norwegian Bokmål
flertall
(inherited)
→
Norwegian Bokmål
absolutt flertall
(inherited)
→
Norwegian Nynorsk
fleire
(derived)