Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
wæterian
←
Proto-West Germanic
*watrōn
(inherited)
←
Proto-West Germanic
*watar
(derived)
←
Old Frisian
wetria
(cognate)
→
English
water
(inherited)
→
Old English
gewæterian
(prefix)
→
Old English
wæterung
(suffix)
→
Scots
watter
(inherited)