The Collaborative International Dictionary
Elenchs
Elench \E*lench"\ ([-e]*l[e^][ng]k"), n.; pl. Elenchs. [L. elenchus, Gr. ?, fr. ? to convict, confute, prove: cf. OF. elenche.] (Logic)
That part of an argument on which its conclusiveness depends; that which convinces of refutes an antagonist; a refutation.
A specious but fallacious argument; a sophism.
Wiktionary
elenchs
n. (plural of elench English)