Definify.com

Webster 1913 Edition

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Noun.

[L., fr. Gr. [GREEK];

ἀντί

against + [GREEK] a falling, a case, [GREEK] to fall.]

(Gram.)

The putting of one case for another.

Noun.

[Gr. case.]

In grammar, the putting of one case for another.

Examples (grammar, rhetoric)
But who packs ‛em into the park? Mr. Rickey? No, me and Paul. Dizzy Dean

antiptosis ‎(countable and uncountable, plural antiptoses)

(grammar, rhetoric) Substitution of one grammatical case for another.
- 1997 April, John Rauk, “The Vocative of Deus and Its Problems” in Classical Philology, volume XCII, № 2, page 143:
  As a vocative form, deus is a clear violation of established norms. The grammarians occasionally encountered apparent examples of such vocatives in the texts they taught, and they explained them either by invoking the figure of antiptosis, in which the “correct” case is replaced by another, or by appeal to the concept of euphonia.
- For more examples of usage of this term, see Citations:antiptosis.

substitution of one grammatical case for another