Augustus
“Possessing venerably majestic grandeur.” Derived from the Latin augere, to increase. Among the Romans, a title of honor and majesty, first conferred upon Octavianus Caesar. Feminine form: Augusta.
August
Derived from Augustus, August is a Latin name meaning to increase.
Augusta
“Characterized by venerably majestic grandeur.” A title of honor bestowed upon the wife, mother, sister, etc., of a Roman emperor. Regarded as the feminine form of Augustus.