Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Swedish
sällsynt
←
Proto-Germanic
*seldanē
(derived)
←
Old Swedish
sälsyn
(derived)
←
Old Swedish
siäldsyn
(mention)
←
Old Swedish
siälsyn
(mention)
←
Old Swedish
siälffsyn
(mention)
←
Swedish
sällan
(mention)
←
Swedish
sällsam
(mention)
←
Swedish
syn
(mention)
→
Swedish
sällsam
(mention)