v.tr. (also indorse) 1 a confirm (a statement or opinion). b declare one's approval of. 2 sign or write on the back of (a document), esp. the back of (a bill, cheque, etc.) as the payee or to specify another as payee. 3 write (an explanation or comment) on the back of a document. 4 Brit. enter details of a conviction for a motoring offence on (a driving licence). endorsable adj. endorsee n. endorser n.
[ med.L indorsare (as IN-(2), L dorsum back) ]