Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Westrobothnian
dobb
←
Westrobothnian
dobb’
(mention)
←
Jamtish
dubl
(cognate)
←
Low German
dobber
(cognate)
←
Norwegian
dobbe
(cognate)
←
Old Norse
dubl
(cognate)
←
Old Norse
dubba
(cognate)