Indorse /(?)/

imp. & p. p. Indorsed; p. pr. & vb. n. Indorsing

1. To cover the back of; to load or burden. [Obs.]

   Elephants indorsed with towers.

2. To write upon the back or outside of a paper or letter, as a direction, heading, memorandum, or address.
3. To write one's name, alone or with other words, upon the back of (a paper), for the purpose of transferring it, or to secure the payment of a note, draft, or the like; to guarantee the payment, fulfillment, performance, or validity of, or to certify something upon the back of (a check, draft, writ, warrant of arrest, etc.). (Law & Com.)
4. To give one's name or support to; to sanction; to aid by approval; to approve; as, to indorse an opinion.