Godspeed is defined as success and good fortune.
(interjection)An example of godspeed is what someone tells a relative who's going traveling.
See Godspeed in Webster's New World College Dictionary
noun, interjection
Origin: contr. of God speed you: see speed,
See Godspeed in American Heritage Dictionary 4
noun
Origin:
Origin: From Middle English God spede (you), may God prosper (you)
Origin: : God, god; see God
Origin: + spede
Origin: , third person sing. present subjunctive of speden, to prosper (from Old English spēdan, from spēd, success; see speed)
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