γναφάλλιον
From LSJ
γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at
English (LSJ)
τό, cotton-weed, Diotis maritima, Dsc.3.117, Plin. HN27.88:—also γνᾰφαλλίς, ίδος, ἡ, Ps.-Dsc.3.117.
Spanish (DGE)
-ου, τό
bot. planta algodonera, Diotis maritima Dsc.3.117, Gal.11.861, Plin.HN 27.88.