sextrysextry means A sacristy; vestry; a room for holy objects. Lexicurio rates it Sui generis — a strength score of 90 out of 100.EtymologyFrom Middle English sextriȝe, cextrye, sextrye, sextry, probably a reduced form of Old French secresterie or Anglo-Latin secrestāria, a variant of Medieval Latin sacristāria.nounA sacristy; vestry; a room for holy objects.