Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Manx
unnane
←
Old English
ān
(cognate)
←
Proto-Celtic
*oinos
(inherited)
←
Welsh
un
(cognate)
←
Scottish Gaelic
aonan
(cognate)
←
Manx
un
(suffix)
←
Manx
ane
(suffix)
←
Proto-Indo-European
*óynos
(inherited)
←
Latin
ūnus
(cognate)
←
Old Irish
óen
(inherited)
→
Breton
unan
(cognate)
→
Manx
unnaneys
(affix)
→
Manx
neu-unnaneys
(affix)
→
Manx
co-unnanee
(confix)
→
Cornish
onen
(cognate)
→
Cornish
onan
(cognate)