Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Icelandic
lengd
←
Proto-Germanic
*langiþō
(inherited)
←
Old Norse
lengd
(inherited)
→
English
length
(cognate)
→
Icelandic
lengja
(mention)
→
Icelandic
bylgjulengd
(compound)
→
Dutch
lengte
(cognate)