c1430 (c1386) G. Chaucer (Cambr. Gg.4.27) (1879) l. 1699 He was lyght of tunge.
1590 T. Lodge (1592) sig. D2v Hath my looks made thee so light of toong, or my fauours incouraged thee to bee so forward, that thou darest presume to preach after thy Father.
1773 ii. 34 Forgive me, Nymphs; I'm light of tongue to-day.