Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Norse
teðja
←
Proto-Germanic
*tadjaną
(inherited)
→
English
tath
(derived)
→
German
zetteln
(cognate)
→
Icelandic
teðja
(derived)