Stam·mer v. i. [imp. & p. p. Stammered p. pr. & vb. n. Stammering.]  To make involuntary stops in uttering syllables or words; to hesitate or falter in speaking; to speak with stops and difficulty; to stutter.
    I would thou couldst stammer, that thou mightest pour this concealed man out of thy mouth, as wine comes out of a narrow-mouthed bottle, either too much at once, or none at all.   --Shak.