1. clerk; secretary
2. writing down; putting on record
Wikipedia definition
3. Dyak (clerk)Dyak is a historical Russian bureaucratic occupation whose meaning varied over time and approximately corresponded to the notions of "chief clerk" or "chief of office department". A dyak was a title of the chief of a structural division of a prikaz. For example, "посольский дьяк" (posolsky dyak) is a dyak of the Posolsky Prikaz (Diplomacy Department). A duma dyak (думный дьяк) was the lowest rank in the Boyar Duma (15-17th centuries).
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