Avestan Nne and What the Manuscripts Keep

Like the second t sign, this letter answers to position rather than to a distinct sound in the language at large. Editors mark it with a dot and keep it in their texts because the manuscripts keep it. Vowel writing is the innovation that separates this alphabet from everything else written in Iran at the time. The letterforms are Pahlavi and the right to left direction is Pahlavi. The vowels are not: they are full letters, and they come first in the order.

No Avestan manuscript survives from earlier than the thirteenth century of the common era. Every copy in existence is therefore many centuries younger than the alphabet, and the alphabet is many centuries younger again than the words. What reaches a modern edition has passed through both gaps. In the digital record the letter is encoded at U+10B27 AVESTAN LETTER NNE. The whole Avestan block lies above the Basic Multilingual Plane, so each character needs a surrogate pair in the encodings that use them, and a font carrying the script is required before anything appears on a screen at all. For the community the value of a script that writes every sound is continuity. It makes it possible to check a recitation against a page rather than against another reciter's memory, which is what the alphabet was for and what it still does.