Paṭibhāneyyaka (adjective) [gerund formation + ka from paṭibhāna] = paṭibhānavant Vin I 249 (cf. Vinaya Texts II 140); A I 25.
(adj, adj, from paṭibhāneyya) inspiring ingenious responses; inspiring eloquence [lit.] to be responded to Construction: pati + √bhaṇ > bhān + *eyya + ka paṭibhāneyya + ka