Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
teethe
←
Old English
tēþan
(inherited)
←
German
zähnen
(cognate)
←
Middle English
tethen
(inherited)
←
Proto-Germanic
*tanþijaną
(inherited)
←
Proto-Germanic
*tanþs
(derived)
→
English
teething
(suffix)
→
English
teether
(suffix)