Which are the 5 languages in Britain Bede
mentioned? Goidelic, Brittonic, Pictish ... and the others?
About the the pictish inscriptions i ogham script,
there is some tentative decipherment (that is assignation of phonetic
values) that it allows to see clearly its celtic-ness. I have read that the
conventional readins my be wrong assignements of phonetic values, for example
the readings offered here:
Davius