Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Proto-Germanic
*traustijaną
→
West Frisian
treaste
(inherited)
→
Icelandic
treysta
(inherited)
→
Dutch
troosten
(inherited)
→
Old Dutch
trosten
(inherited)