Islamic religious law, 1855, from Arabic shari'ah "the revealed law," from shar' "revelation."
1640s, "prescribed manner of performing religious worship," from ritual (adj.). From 1650s as "book containing the rites or ordinances of a church," also "the external forms of religious or other devotional exercises," often in that sense somewhat pejorative (mere ritual, forgetful of meaning).
late Old English, "set of persons walking or riding formally or with ceremonious solemnity; a religious procession; the triumphal entry of Jesus into Jerusalem," from Old French procession "procession" (religious or secular), 11c., and directly from Late Latin processionem (nominative processio) "religious procession," in classical Latin "a marching onward, a going forward, advance," noun of action from past-participle stem of procedere (see proceed). Meaning "act of issuing forth" from anything is late 14c. Related: Processionary.
1650s, "act of reviving after decline or discontinuance;" specifically from 1660s as, "the bringing back to the stage of a play which has not been presented for a considerable time;" from revive + -al (2).
The sense of "a general and extraordinary religious awakening in a community" is in Cotton Mather (1702, revival of religion); by 1818 it was used of enthusiastic religious meetings (often by Methodists) meant to inspire revival. In reference to the Victorian popularity of Gothic architecture, by 1850. Revivalist "one who promotes or leads a religious revival" is attested by 1812. Related: Revivalism.