Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
German
wachsam
←
German
wach
(suffix)
←
German
sam
(suffix)
→
English
watchful
(cognate)
→
English
wakesome
(cognate)
→
German
Wachsamkeit
(suffix)
→
Swedish
vaksam
(cognate)