Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-West Germanic
*traust
→
German
Trost
(inherited)
→
Latin
trustis
(derived)
→
Old Frisian
trast
(inherited)
→
Saterland Frisian
Traast
(inherited)