Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
twene
←
Old English
twēġen
(cognate)
←
Proto-West Germanic
*twai-
(inherited)
←
Old Saxon
twēne
(cognate)