Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
stäkk
←
Westrobothnian
stäkku
(mention)
←
Westrobothnian
stakku
(mention)
←
Old Norse
stakkr
(cognate)
←
Old Norse
stakkóttr
(cognate)