We don't have synonyms for Godspeed yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are godsend, god-speed and god speed.
(interjection) :
an expression of respect and good will when addressing someone, typically someone about to go on a journey or a daring endeavor; a Christian substitute to the otherwise sacrilegious "good luck", which implies that anything can be random and out of the hands of God. Used to express concern and prayer for someone
(interjection) :
an expression of respect and good will when addressing someone, typically someone about to go on a journey or a daring endeavor; a Christian substitute to the otherwise sacrilegious "good luck", which implies that anything can be random and out of the hands of God. Used to express concern and prayer for someone