en·dorse (ĕn-dôrs) also in·dorse (ĭn-)
tr.v. en·dorsed, en·dors·ing, en·dors·es also in·dorsed or in·dors·ing or in·dors·es
a. To express approval of or give support to, especially by public statement; sanction: endorse a change in policy; endorse a political candidate.
b. To recommend (a product), often in exchange for payment, as in an advertisement.
2. To write one's signature on the back of (a check) to obtain the amount payable or to make the amount payable available to a third party or to the bearer.
3. To write one's signature on the back of (an instrument) to transfer the rights available under that instrument to another party.
4. To place (one's signature), as on a contract, to indicate approval of its contents or terms.
5. To acknowledge (receipt of payment) by signing a bill, draft, or other instrument.
[Middle English endosen, to sign (a document, originally by writing on its back), approve, from Anglo-Norman endosser, from Medieval Latin indorsāre : Latin in-, upon, in; see EN-1 + Latin dorsum, back.]
en·dorser, en·dorsor n.
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