The Collaborative International Dictionary of English v.0.48:
Amount \A*mount"\, v. i. [imp. & p. p. Amounted; p. pr. & vb.
n. Amounting.] [OF. amonter to increase, advance, ascend,
fr. amont (equiv. to L. ad montem to the mountain) upward, F.
amont up the river. See Mount, n.]
1. To go up; to ascend. [Obs.]
So up he rose, and thence amounted straight.
2. To rise or reach by an accumulation of particular sums or
quantities; to come (to) in the aggregate or whole; --
with to or unto.
3. To rise, reach, or extend in effect, substance, or
influence; to be equivalent; to come practically (to); as,
the testimony amounts to very little.