Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*staum
→
Afrikaans
stoom
(inherited)
→
Dutch
stoom
(inherited)
→
Saterland Frisian
Stoom
(inherited)