Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Tagalog
lakad
←
Proto-Austronesian
*lakat
(inherited)
→
Ibanag
lakag
(cognate)
→
Tagalog
maglakad
(prefix)