Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Frisian
skeltata
←
Old High German
sculdheizo
(cognate)
←
Old Frisian
skeld
(blend)
←
Old Frisian
hāta
(blend)