betray itself

13 LETTERS · STARTS WITH B

betray itself is a valid 13-letter word worth 20 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
B3E1T1R1A1Y4I1T1S1E1L1F4
3 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 1 + 1 + 1 + 1 + 4 =20 PTS
DOUBLE WORD → 40TRIPLE WORD → 60
MEANING

What does betray itself mean?

1