penitential exercise

20 LETTERS · STARTS WITH P

penitential exercise is a valid 20-letter word worth 30 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

P3E1N1I1T1E1N1T1I1A1L1E1X8E1R1C3I1S1E1

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 8 + 1 + 1 + 3 + 1 + 1 + 1 =30 PTS

DOUBLE WORD → 60TRIPLE WORD → 90

MEANING

What does penitential exercise mean?