convoy Look up convoy at Dictionary.com
late 14c. (as a verb), from O.Fr. convoier, from V.L. *conviare, lit. "go together on the road" (see convey). The noun first recorded 1550s, "the act of guiding or escorting for protection;" meaning "train of ships or wagons carrying munitions or provisions in wartime under protection of escort" is from c.1600.