Classical Tibetan

Classical Tibetan refers to the language of any text written in Tibetan after the Old Tibetan period and before the modern period, but in particular refers to the language of early canonical texts translated from other languages, especially Sanskrit. The phonology implied by classical Tibetan orthography is basically identical to the phonology of Old Tibetan, but the grammar varies greatly depending on period and geographic origin of the author. Such variation is an underresearched topic.