Lisp

v. i. [imp. & p. p. LISPED (lĭspt); p. pr. & vb. n. LISPING.] [A-S. wlisp, wlisp, stammering, lisping; O. H. Ger. lisp, Sw. & Dan. lisp, lisping; O. H. Ger. lispian, lispen, to lisp; M. H. Ger. & D. lispen, N. H. Ger. lispeln, Sw. läspa, Dan. lespe or lispe.]

1Sense 1. To pronounce the sibilant letter s imperfectly; to give s the sound of th;—a defect common among children.

2Sense 2. To speak imperfectly; to utter in a modest, hesitating way; hence, to make feeble beginnings or imperfect efforts.

I lisped in numbers, for the numbers came. Pope.

n. The habit or act of lisping, as in uttering an aspirated th for s.