xaverianEtymologyFrom Xavier + -ian, after St. Francis Xavier.xaverian means pertaining or related to this religious order. Lexicurio rates it Sui generis — a strength score of 87 out of 100.adjPertaining or related to this religious order.nounA member of the Xaverian Brothers, a religious order founded in Bruges, Belgium 1839 and dedicated to Catholic education.