Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Alemannic German
Brüüsch
←
Proto-Celtic
*wroikos
(derived)
←
Welsh
grug
(cognate)
←
Spanish
brezo
(cognate)
←
French
bruyère
(cognate)
←
Irish
-
(cognate)
←
Scottish Gaelic
fraoch
(cognate)
←
Galician
breixo
(cognate)
←
Cornish
-
(cognate)