The polyglot and poly-alphabetical Middle Ages

An exceptional collection of seven alphabets (two Hebrew, one Greek, one 'Chaldaean', one 'Egyptian', one runic, and one of obscure origin entitled 'Norma') is preserved in a manuscript in the Vatican library (Reg.lat.338) composed in Northern France or perhaps Germany and dating, probably, from the first half of the 9th century AD.  Written in Caroline…