[1637, H[enry] C[ockeram], “Inaniloquous”, in The English Dictionarie: Or, An Interpreter of Hard English Words. [...], 5th rev. and enl. edition, London: Printed by I[ohn] H[aviland] for Edmund Weaver, and are to be sold [by J. Crooke and R. Sergier] at the Greyhound in S. Pauls Church-yard, →OCLC:
INANILOQUENT, INANILOQUOUS, [inaniloquus, L.] Vain Talking or Babbling.[sic]]
1934, The Modern Monthly, volume 8, New York, N.Y.: The Modern Quarterly, →OCLC, page 308, column 2:
The blank spaces of [Stéphane] Mallarmé, the silence of [Maurice] Maeterlinck, the inaniloquous repetitive babblings of Gertrude Stein are the abyss which threatens to engulf creative effort if it continues in this direction.