Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
etwan
←
Middle High German
etewanne
(inherited)
←
Old High German
etheswanne
(inherited)
→
German
etwa
(mention)
→
German
etwanig
(suffix)