Emily Dickinson Lexicon

IN-DORSE', v.t. [indors'; L. in and dorsum, the back.]

1. To write on the back of a paper or written instrument; as, to indorse a note or bill of exchange; to indorse a receipt or assignment on a bill or note. Hence,
2. To assign by writing an order on the back of a note or bill; to assign or transfer by indorsement. The bill was indorsed to the bank.
3. To approve; as to indorse a statement or the opinions of another. [Modern.] To indorse in blank, to write a name only on a note or bill, leaving a blank to be filled by the indorsee.