High Etrandish language

The High Etrandish language is a particularly high-register (the highest in fact) variant of the Etrandish language, more accurately described as a constructed language (in many ways analogous to real-life Ottoman Turkish) - it never had any native speakers, and is merely used in official documents, poetry and other literature. Traditionally the literature language of Etrand, it is gradually being replaced by written forms of the vernacular.

Phonology
The phonology of High Etrandish is completely identical to that of Standard Etrandish.
 * Native Etrandish words are pronounced exactly as in vernacular Etrandish.
 * Classical High Elven words are pronounced according to the Etrandish standard
 * Middle and Contemporary High Elven words are pronounced with an Etrandish approximation of the original High Elven pronounciation, all the phonemes of (Middle) High Elven being mapped onto the closest corresponding Etrandish equivalents.

Grammar
The grammar of High Etrandish is practically identical to that of Middle Etrandish, with the archaic dative and genitive cases - which at this point have fallen out of use in vernacular Etrandish - being preserved. High Elven words are stripped down to their roots (stripped of their conjugations), and conjugated according to Etrandish grammar.

Vocabulary
What sets High Etrandish apart from vernacular Etrandish is the extraordinarily high amount of High Elven vocabulary. Pretty much only pronouns, numbers, grammatical words (e.g. conjugations), basic function words (e.g. the copula, pronoun and some of the most commonly used verbs) are of native Etrandish origins - just about everything else is borrowed from various variants of High Elven (classical, middle and contemporary).

Usage
The language was never a spoken language, not even among the highest of nobility: it has always been a written language, used primarily for official documents, poetry and other literature. It has always been regarded as an artificial language, sitting uncomfortably between the "vulgar" vernacular Etrandish and "foreign" High Elven - intellectuals continue to favour Classical High Elven as the language of education, while non-aristocrats simply opt to speak and write in the vernacular tongue. Ever since the 8th century AEKE, the usage of High Etrandish has been declining, with the language of documents and poetry gradually being "vernacularized": for instance as of the 9th century AEKE, the archaic dative case has completely fallen out of use, even in formal speech and formal texts or official documents.