Earlier forms include gallogascaine(s) and galigascon(s).
Perhaps an alteration of obsolete French garguesque that was influenced by galley, “a kitchen or an area with kitchen facilities in a ship, plane, or camper,” and Gascon, “a native of Gascony, France.”
She saw through the sycophant‘s deceptive flattery and remained wary of his ulterior motives.
The playwright created a character who was an exaggerated representation of a sycophant, using satire to mock those who seek favor through insincere flattery.