Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
þæcele
←
Proto-Germanic
*þakiljǭ
(inherited)
←
Proto-Germanic
*þakjaną
(derived)
←
Proto-Germanic
*þak-
(mention)
←
Old High German
dahhezzen
(cognate)
←
Old High German
dachezzen
(mention)
→
Tocharian B
cok
(cognate)