Godspeed

Wikipedia: Godspeed  

Godspeed, as a word, is a wish for a prosperous journey, success, and good fortune (from Middle English God speed you, meaning "May God help you prosper"). It is also used occasionally in a non-religious manner, intended as a wish for a job to be accomplished quickly. As part of the English naval tradition, the phrase was uttered in launching military vessels, and today is heard during with NASA space shuttle countdowns. 

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