1425-75; (v.) late Middle Englishsurrendren < Anglo-Frenchsurrender,Old Frenchsurrendre to give up, equivalent to sur-sur-1 + rendre to render1; (noun) < Anglo-French;Old Frenchsurrendre, noun use of the infinitive
early 15c., "to give (something) up," from Old French surrendre "give up, deliver over" (13c.), from sur- "over" (see sur-) + rendre "give back" (see render). Reflexive sense of "to give oneself up" (especially as a prisoner) is from 1580s. Related: Surrendered; surrendering.
early 15c., legalese, "a giving up" (of an estate, land grant, interest in property, etc.), from Anglo-French surrendre infinitive used as a noun, from Old French surrendre "give up, deliver over" (see surrender (v.)).