1stut·ter 
/ˈstʌtɚ/ verb
stut·ters; stut·tered; stut·ter·ing /ˈstʌtɚ/ verb : to have a speech problem that causes you to repeat the beginning sound of some words [no obj] ▪ I used to stutter when I was a child. ▪ She stutters when she gets excited. [+ obj] ▪ He stuttered [=stammered] something that I didn't understand.
— stut·ter·er /ˈstʌtɚrɚ/ noun, plural stut·ter·ers [count]
▪ I was a stutterer as a child.
/ˈstʌtɚrɚ/ noun, plural stut·ter·ers [count] ▪ I was a stutterer as a child.
— stuttering noun [noncount]
▪ He had speech therapy for his stuttering.
▪ He had speech therapy for his stuttering.
