Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Scottish Gaelic
beagan
←
Irish
beagán
(cognate)
←
Scottish Gaelic
beag
(affix)
←
Scottish Gaelic
-an
(affix)
←
Manx
beggan
(cognate)
←
Old Irish
becán
(inherited)
→
Irish
beagán
(cognate)
→
Manx
beggan
(cognate)