Acquiet is not a commonly used word, but it can be spelled phonetically as "ackwiet". The word consists of two syllables, with emphasis on the first. The "a" sound is pronounced as in "cat", while the "w" sound is a voiced bilabial glide. The "ie" sound is pronounced as a long "e", like in "beet". The final consonant, "t", is unvoiced and pronounced by releasing air through the vocal cords. Overall, the pronunciation of Acquiet takes on a rather soft and gentle tone.
The word "acquiet" appears to have a relatively obscure etymology. It is derived from the Old French word "acquie(t)" which means "quiet, tranquil". This Old French term, in turn, comes from the Latin word "quietus" meaning "at rest, peaceful".
In English, "acquiet" or "acquit" is primarily used as a legal term, referring to the release or discharge from an obligation, typically in relation to a debt or a legal claim.