[ec.cle.si.as.ti.cal] adj [ME, fr. LL ecclesiasticus, fr. LGk ekklesiastikos, fr. Gk, of an assembly of citizens, fr. ekklesiastes] (15c) 1: of or relating to a church esp. as a formal and established institution "~ law"
2: suitable for use in a church "~ vestments" -- ec.cle.si.as.ti.cal.ly adv