Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scanian
tjykker
←
Proto-Germanic
*þekuz
(inherited)
←
Proto-Germanic
*þikwijaz
(mention)
←
Old Norse
þykkr
(inherited)
←
Old Norse
þjukkr
(mention)
←
Old Norse
þjokkr
(mention)