Found·er v. i. [imp. & p. p. Foundered p. pr. & vb. n. Foundering.]
1. Naut. To become filled with water, and sink, as a ship.
2. To fall; to stumble and go lame, as a horse.
For which his horse fearé gan to turn,
And leep aside, and foundrede as he leep. --Chaucer.
3. To fail; to miscarry. “All his tricks founder.”