the word 'splutter' is a relatively recent formation in english, first appearing in the late 17th century. it is an expressive, onomatopoeic word, likely created by blending or modifying elements from similar sound-imitating words like 'sputter' and 'splash'. the 'spl-' onset effectively evokes the sound of liquid being ejected or an explosive release of air and moisture, which directly connects to its core meanings of agitated, wet-sounding speech or a series of short spitting noises. its evolution is a clear example of language creating a vivid, sound-symbolic term to describe a specific auditory and behavioral phenomenon.

this word is considered a simplex form. it is an onomatopoeic formation, imitative of the sound of spitting or of speech uttered in a rapid, confused, or agitated manner.