c1902  The greatest risk of travelling after dark during the spring floods arose from what the voyageurs called embarras--trees torn from the banks sticking in the soft bottom like derelicts to entangle the trapper's craft; but the embarras often befriended the solitary white man.
1793  (1801)  In passing over one of the embarras, our dog . . . fell in. . . .
1808  (1950)  . . . the first part of this Rivulet had water enough for us & plenty of beaver--the mid part full of embarras which took us much time to get a passage through. . . .