What is another word for "sackcloth"?

Roget's Thesaurus (1911) lists these synonyms for "sackcloth": absolve, abstinence, acerbic, amende, amends, anchoret, anchorite, and, apologize, apology, ascetic, asceticism, ashes, atone, atonement, austere, austerity, beg, burnt, come, compensation, composition, compromise, conciliation, cynic, cynical, cynicism, down, expiate, expiation, fair, fall, flagellation, for, forfeit, give, good, hermit, honorable, house.