Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Welsh
ymdrech
←
Proto-Celtic
*trexs-
(inherited)
←
Welsh
ymdrechu
(mention)
←
Welsh
ym-
(prefix)
←
Welsh
trechu
(prefix)
←
Proto-Indo-European
*treg-
(inherited)
→
Welsh
ymdrechgar
(affix)