Persian ............... Sarmatian ( by strabo )
Finns ................ Suomalai
breton ................ Breizh
Where does the term Wend fit in? , clearly a 7th century made up word by germans who meant either slav and/or balts from the east, but never used by them (germans ) in the balkans
just a (long) detail
Breton is used for the people, not the country (Bretagne, Bretanje ...= Breizh) but at first sight it seams an endonyme, beings all these forms only shifts of the same root - there are some discussions among scholars about the shift
lat- 'britann-' (T-NN) an the word 'britton-' (TT-N), maybe a confusing between close pronounciation names -
we could suppose a possible confusion between Pretania (brittonic form or Cruithni-) and Brittonia where 'britt-' (>> Breizh, Brythoneg etc...) could come from *brikt (mixed coloured, tatooed, see Pictes) >> 'brith', 'brizh' (welsh, breton): "spottled", "freckled" etc... A. RAUDE thinks Brittia, a supposed region of N-Britannia gave Breizh, brezhon, distinct from Britannia, latin form or mispronouncing... welsh and breton have a word 'brych', 'brec'h' with a previous close meaning so? *'brik-t'???
amusing: welsh name for Bretagne is 'LLydaw' << 'Letavia' that someones linked to Latvia-Lettonia !!! a more accurate (seamingly) explanation should be *'-let-'/*'llet-' << 'plat-' = level, shallow (bret- 'led' = breadth, 'ledan' = wide, broad -
on the same mode, very often well educated (by school) people give very often second or third names to people of other countries, maybe to show their great knowledge:
in France we say very often 'les Helvètes' when speaking about Swiss people, that is very unexact or unprecise - 'Hollandais' for people of the Netherlands -
Scotland, according to its complicated history, has more than a name:
'Alban' in welsh, 'Calédonie' for the cultured selfsatisfied people
see 'Galles', 'Wales', 'Cymru' ("Cambrie")
to conclude, showing the imprecision of some reports and namings among popular culture (and even well educated one) I recall that Frisons was sometimes referred to as 'Saxons', and that 'Vikings' as 'Frisons' - stronger: in some french tongue tales of Brittany (Middel Ages), the same charactere was referred to as 'Normand' here and 'Sarrasin' there!!! (ridculous: or a mess caused by the presence of Normen in N-Africa???
('roumi' = 'roman' was the name given by arab speaking populations (in N-Africa) for all the European people%...