Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
eighteenth
→
English
eighteenthly
(suffix)
→
Cimbrian
achtzante
(cognate)
→
Pennsylvania German
achtzeht
(cognate)