from French galimatias, a word of unknown origin, first attested in Montaigne, 1580 (jargon de galimathias)
1653 - The First (second) Book of the Works of Mr. Francis Rabelais 1653 (1664),
Sir Thomas Urquhart;
see Example below
From: The Works of Francis Rabelais.
Translated from the French.
By Sir Thomas Urquhart and Motteux
A New Edition.
Volume I. 1851
Chapter II. Of the Genealogy and Antiquity of Gargantua