In A Delightful Introduction for Ascertaining [Correct] Speech (smra ba rnam par nges pa rab dga'i 'jug pa), a short work that compares words in (unspecified) spoken dialects with their corresponding forms in literary Tibetan, Khedrupjé lists this as a dialect form that is equivalent to the literary 'dug mi 'dug (“are there or are there not?”).

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