Stammering

Part of speech: noun (n.)

A disturbance in the formation of sounds. It is due essentially to long-continued spasmodic contraction of the diaphragm, by which expiration is preented, and hence it may be considered as a spasmodic inspiration.

Part of speech: adjective (a.)

Apt to stammer; hesitating in speech; stuttering. -- Stam"mer*ing*ly, adv.