Tit'ter1, v. i.
[imp. & p. p. TITTERED; p. pr. & vb. n. TITTERING.] [Cf. Prov. Eng. titter, to tremble, to seesaw, Icel. titra, to tremble, N. H. Ger. zittern, to tremble, kichern, to titter. See TEETER and DIDDER.] To laugh with the tongue striking against the root of the upper teeth; to laugh with restraint.