Γελᾷ δ' ὁ μωρός, κἄν τι μὴ γέλοιον ᾖ → The fool laughs even when there's nothing to laugh at
subs.
P. and V. χαλινός, ὁ, στόμιον, τό (Xen.), ἡνία, ἡ (Plat.).
v. trans.
P. χαλινοῦν (Xen.), V. ὀχμάζειν, Met., Ar. and P. ἐπιστομίζειν; see also check.