answer

before 900; Middle English andswerien, Old English andswerian, andswarian derivative of andswaru an answer, equivalent to and- opposite, facing (cf. and, along) + Germanic *swarō, derivative of swear

1. Answer, rejoinder, reply, response, retort all mean words used to meet a question, remark, charge, etc. An answer is a return remark: an answer giving the desired information. A rejoinder is a quick, usually clever answer or remark made in reply to another's comment, not to a question. Reply usually refers to a direct or point-by-point response to a suggestion, proposal, question, or the like: a reply to a letter. A response often suggests an answer to an appeal, exhortation, etc., or an expected or fixed reply: a response to inquiry; a response in a church service. A retort implies a keen, prompt answer, especially one that turns a remark upon the person who made it: a sharp retort.

In English, the verb answer derives from the noun, though both are equally old and occur in Old English translations of the Gospels. The Old English noun is andswaru “response to a question,” composed of the Old English prefix and- “against, contra-” and -swer with two meanings: the legal sense of “a swearing on oath, as in giving testimony” and the neutral, nonlegal sense of “a reply, a response to a question.” In both its legal and general senses, Old English andswaru parallels the Latin verb respondēre, originally a legal term meaning “to make a formal response,” and then used in the general sense “to answer, reply.”