succession duty

15 LETTERS · STARTS WITH S

succession duty is a valid 15-letter word worth 22 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1U1C3C3E1S1S1I1O1N1D2U1T1Y4

1 + 1 + 3 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 2 + 1 + 1 + 4 =22 PTS

DOUBLE WORD → 44TRIPLE WORD → 66

MEANING

What does succession duty mean?