c.1290, "discomfit, abash, confuse," from Anglo-Fr.
confoundre, from O.Fr.
confondre, from L.
confundere "to confuse," lit. "to pour together," from
com- "together" +
fundere "to pour" (see
found (2)). The fig. sense of "confuse, fail to distinguish, mix up" emerged in L., passed into O.Fr. and thence into M.E., where it is mostly found in Scripture; the sense of "destroy utterly" is recorded in Eng. from c.1300. The L. pp., meanwhile, became
confuse (q.v.).
Confounded as an execration is first recorded 1652.