(A). A scourge used by Roman Catholics for penitential purposes.
“Before the cross and altar a lamp was still burning, and on the floor lay a small discipline or penitential scourge of small cord and wire, the lashes of which were stained with recent blood.” —Sir W Scott: The Talisman. chap. iv
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894