Set Down Meaning

(obsolete) To humiliate.

Example:   I set down this account so others may benefit from my experience.
  Some rules were to be set down for the government of the army.
To fix; to establish; to ordain.
  This law we may name eternal, being that order which God […] hath set down with himself, for himself to do all things by.
To place, especially on the ground or a surface; to cease carrying.