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tr.v. con·found·ed, con·found·ing, con·founds
1. To cause to become confused or perplexed. See Synonyms at perplex.
2. To fail to distinguish; mix up: Don't confound fiction and fact.
3. To make (something bad) worse: Do not confound the problem by losing your temper.
4. To cause to be ashamed; abash: an invention that confounded the skeptics.
5. Used in mild curses: Confound you!
a. To frustrate or thwart: trivial demands that confounded the peace talks.
b. Archaic To defeat or overthrow (an enemy).
[Middle English confounden, from Anglo-Norman confundre, from Latin cōnfundere, to mix together, confuse : com-, com- + fundere, to pour; see gheu- in Indo-European roots.]
in a confounding manner