γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → the fool laughs even when there's nothing to laugh at
tŭbŭr, is, f., c. tuber 2 : Plin. 15, 47 ; 17, 75.
tubur tuburis N M :: exotic fruit; (azarole or oriental medlar); the bush (Crataegus azarolus)
tubur, s. 2. tuber.