jetty relation?

[wurdpurrson]

Just wondering if this word is also related to the French word, jeté, the name of a broad stretching leap in ballet?

[Slava]

That it do be.

early 15c., from O.Fr. jetee "a jetty, a projecting part of a building," also "a throw," noun use of fem. pp. of jeter "to throw" (see jet (v.)). Notion is of a structure "thrown out" past what surrounds it.

So, in ballet it means "with the leg thrown out".

[wurdpurrson]

When an accomplished dancer executes a jeté, both the leading and the trailing leg are thrust out, forming a "split" high in the air. Pretty impressive.