Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
Mathematik
→
German
mathematisch
(suffix)
→
German
Mathe
(mention)
→
Yiddish
מאַטעמאַטיק
(borrowed)