Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old Irish
in-
←
Proto-Celtic
*eni-
(inherited)
←
Old Irish
i
(mention)
←
Old Irish
ind-
(mention)
←
Old Irish
en-
(alter)
←
Old Irish
ad-
(mention)
←
Old Irish
ad·cota
(mention)
←
Old Irish
(mention)
←
Old Irish
ad·fét
(mention)
←
Old Irish
(mention)
←
Old Irish
ad·greinn
(mention)
←
Old Irish
(mention)
←
Old Irish
ad·snádi
(mention)
←
Old Irish
(mention)
←
Old Irish
as-
(mention)
←
Old Irish
as·dloing
(mention)
←
Old Irish
(mention)
→
Old English
un-
(cognate)
→
Faroese
ó-
(cognate)
→
Irish
inis
(mention)
→
Irish
iontas
(mention)
→
Ancient Greek
ἀ-
(cognate)
→
Manx
ynsee
(mention)
→
Icelandic
ó-
(cognate)
→
Old Irish
ind-
(mention)
→
Old Irish
adcota
(mention)
→
Old Irish
adcota
(affix)
→
Old Irish
doéccai
(affix)
→
Old Irish
saidid
(affix)
→
Old Irish
inloing
(affix)
→
Old Irish
doinóla
(affix)
→
Old Irish
doecmalla
(prefix)
→
Old Irish
doairngir
(affix)
→
Old Irish
asdloing
(affix)
→
Old Irish
ingnin
(affix)
→
Old Irish
conétet
(affix)
→
Old Irish
adcumaing
(affix)
→
Old Irish
doecmaing
(affix)