This paper proposes a new analysis of the Classical Tibetan case system. After presenting the traditional as well as modern linguistics view on cases, I introduce a new analysis of the Classical Tibetan case system in ten cases: absolutive, agentive, genitive, dative, purposive, locative, ablative, elative, associative and comparative. The present description of morphology, grammatical semantics and syntax of the cases is based on four fundamental properties of the Classical Tibetan casemarkers, namely: cliticity, multifunctionality, transcategoriality and optionality. The originality of this literary case system lies in the multifunctional, transcategorial and optional nature of the casemarkers, which largely contributes to the great syntactic complexity of this old literary language of the Tibeto-Burman family.

This paper is the first attempt to provide the outlines of the Chocha-ngachakha, a Tibetic language spoken in Eastern Bhutan.

This language (particularly the Tokari dialect described here) has preserved many archaic features and can be considered as the 'most archaic Tibetic language' spoken in the southern Himalayas.

the linguistic conservatism of Tsamang Chocha-ngachakha is not confined to phonology but extends to grammar and vocabulary.

The data from Chocha-ngachakha sheds new light on the evolution of the Tibetic family