Basic Guidelines For English Spellings
READ THESE ARTICLES
1Christian Church
historical, rare An office-book used in processions; = "processional".
2A person taking part in a procession; a person moving in or as in procession with others.
3US historical, dialect An official responsible for making a procession around land to determine its bounds. Compare "procession".
Late Middle English; earliest use found in Archaeological Journal. From procession + -er.