presume upon

12 LETTERS · STARTS WITH P

presume upon is a valid 12-letter word worth 17 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1E1S1U1M3E1U1P3O1N1
3 + 1 + 1 + 1 + 1 + 3 + 1 + 0 + 1 + 3 + 1 + 1 =17 PTS
DOUBLE WORD → 34TRIPLE WORD → 51
MEANING

What does presume upon mean?

1