Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
blencan
←
Proto-Germanic
*blankijaną
(inherited)
←
Icelandic
blekkja
(cognate)
←
Old Norse
blekkja
(cognate)