From Wiktionary, the free dictionary
From penance + -less.
penanceless (not comparable)
- (rare) Free from penance.
1874, Edmund Martin Geldart, comtesse Marie Alker Günther, Folk-lore of Modern Greece: The Tales of the People, page 30:I am now redeemed; you too shall soon be released from your earthly bondage, and will return to God penanceless.