vaunt-courier

vaunt-cour·i·er

 (vônt′ko͝or′ē-ər, -kûr′-, vŏnt′-)
n. Archaic
A person, such as a herald, sent in advance.

[Short for obsolete French avaunt-courier : Old French avaunt, in front; see vanguard + Old French courrier, messenger; see courier.]

vaunt-courier

n
archaic or poetic a person or thing that goes in advance; forerunner; herald
[C16: from French avant-courrier; see avaunt, courier]