Hypertext Webster Gateway: "endorse"

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Elephants indorsed with towers. --Milton.

2. To write upon the back or outside of a paper or letter, as
a direction, heading, memorandum, or address.

3. (Law & Com.) 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 ?ote,
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.).

4. To give one's name or support to; to sanction; to aid by
approval; to approve; as, to indorse an opinion.

{To indorse in blank}, to write one's name on the back of a
note or bill, leaving a blank to be filled by the holder.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

Note: Both endorse and indorse are used by good writers; but
the tendency is to the more general use of indorse and
its derivatives indorsee, indorser, and indorsement.

From Webster's Revised Unabridged Dictionary (1913) (web1913)

From WordNet (r) 1.7 (wn)

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