Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
þin
←
Proto-West Germanic
*þīn
(inherited)
←
Old High German
dīn
(cognate)
←
Old Norse
þinn
(cognate)