Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
meltan
←
Proto-Germanic
*meltaną
(inherited)
←
Proto-Germanic
*maltijaną
(derived)
←
Proto-West Germanic
*meltan
(inherited)
←
Proto-Indo-European
*(s)mel-
(derived)
←
Icelandic
melta
(cognate)
→
English
smelt
(cognate)
→
English
melt
(inherited)
→
Old English
formeltan
(prefix)