sacrlegious -
n. 1 a religious ceremony or act of the Christian Churches regarded as an outward and visible sign of
inward and spiritual grace: applied by the Eastern, pre-Reformation Western, and Roman
Catholic Churches to the seven rites of baptism, confirmation, the Eucharist, penance, extreme unction, ordination, and matrimony, but restricted by most Protestants to baptism and the Eucharist.
2 a thing of mysterious and sacred significance; a sacred influence, symbol, etc.
3 (also
Blessed or Holy Sacrament) (prec. by the) a the Eucharist. b the consecrated elements, esp. the
bread or Host.
4 an oath or solemn engagement taken.
[ME f. OF sacrement f. L sacramentum solemn oath etc. f. sacrare hallow f. sacer SACRED, used in Christian L as transl. of Gk musterion MYSTERY(1)]