Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
sljett
←
Proto-Germanic
*slihtaz
(inherited)
←
Old Norse
sléttr
(inherited)
←
Old Norse
slétta
(inherited)
←
Old Norse
slétta
(inherited)