One who processes or summonses; a sheriff's officer; a bailiff.(noun)
The Century Dictionary (Public Domain)
Use "process-server" in a sentence
"For instance, the Friar tells an aggressive story about a crooked Summoner, a sort of process-server, who runs a string of call-girls and operates a follow-up blackmail racket, relying on the threat of denunciation to the church courts."
"Rubempre, endorsed to order of Metivier, and finally to our order, matured the thirtieth of April last, protested by Doublon, process-server, on the first of May, eighteen hundred and twenty-two.fr. c."
"Not a sea-port, where some fine morning the Salaminian galley can appear, bringing a process-server along."