The spelling of the word "dost violence" may seem unusual, but it is actually a variant of the phrase "does violence." The spelling "dost" is an archaic second person singular form of the verb "do" that was commonly used in Early Modern English. The pronunciation of "dost violence" is /dʌst ˈvaɪələns/, with the stressed syllable being "vi" and the two unstressed syllables "dost" and "lence." This spelling and pronunciation can cause confusion for modern English speakers not familiar with early forms of the language.
The phrase dost violence does not have a specific etymology as it is not a complete word or phrase on its own. Dost is the archaic second-person singular present tense of the verb do in Middle English, which means to act or perform. Violence, on the other hand, comes from the Latin word violentia, which means vehemence, impetuosity. However, without additional context or clarification, it's difficult to determine the specific origin or intended meaning of dost violence.