to return as an answer (usually used in a negative combination or followed by a clause with that ): Not a syllable did he reply. He replied that no one would go.
c.1385, from O.Fr. replier "to reply, turn back," from L. replicare "to reply, repeat," lit. "fold back," from re- "back, again" + plicare "to fold" (see ply). The noun is first recorded 1560. Mod.Fr. répliquer is directly from L.L.