Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
þynna
←
Proto-Germanic
*þunnijǭ
(inherited)
←
Icelandic
þynning
(link)
←
Icelandic
þunnur
(link)
←
Icelandic
þynnka
(link)