Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Danish
suge
←
Proto-Germanic
*sūganą
(inherited)
←
Proto-Indo-European
*sug-
(derived)
←
Proto-Indo-European
*suk-
(mention)
←
Old Norse
súga
(inherited)
→
Danish
sugekolbe
(affix)
→
German
saugen
(cognate)