From a surname of French origin (also spelled Sigournay). The American actress Sigourney Weaver (1949-) adopted the name Sigourney in 1963 after a minor character in F. Scott Fitzgerald's novel The Great Gatsby (1925): "Mrs Sigourney Howard".
Sky is an English vocabulary word signifying the uncertain distance high above us or the upper regions of the air. The English word is a modern mutation of the Old Saxon “scio†borrowed from the Old Norse “ský†meaning “cloudâ€. ... As a nature name, Sky is one of those “hippie†throwbacks like River, Echo or Rainbow.
English Meaning: The name Skye is an English baby name. In English the meaning of the name Skye is: Refers to the Scottish Isle of Skye; a nature name referring to the sky.