Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Irish
Gael
←
Old English
wāþ
(cognate)
←
Proto-Brythonic
*guɨðel
(derived)
←
Proto-Celtic
*wēdus
(derived)
←
Welsh
Gwyddel
(cognate)
←
Irish
féine
(mention)
←
Irish
féineachas
(mention)
←
Proto-Indo-European
*weydʰ-
(derived)
←
Old Welsh
Guoidel
(derived)
←
Old Irish
Goídel
(inherited)
←
Old Irish
féni
(mention)
←
Old Irish
fénechas
(mention)
→
English
Gael
(borrowed)
→
Irish
Gaeltacht
(affix)
→
Irish
Fine Gael
(compound)
→
Irish
Gaelcholáiste
(affix)
→
Irish
Gaelach
(affix)
→
Irish
Gaelaigh
(affix)
→
Irish
Gael-Mheiriceánach
(affix)
→
Irish
Gall-Ghael
(affix)
→
Swedish
gäl
(cognate)