Definition of processionally in English:
processionally
adverb prəˈsɛʃ(ə)n(ə)liprəˈsɛʃən(ə)liprəˈsɛʃ(ə)nəli
In a processional manner; in procession.
Origin
Late Middle English; earliest use found in Osbern Bokenham (c1393–c1464), poet and Augustinian friar.