Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
West Frisian
fyftjin
→
English
fifteen
(cognate)
→
Dutch
vijftien
(cognate)
→
Saterland Frisian
füüftien
(cognate)