somersaulting vs summersault

somersaulting and summersault both are nouns.

Word	Noun	Adjective	Verb	Adverb
somersaulting	Yes	No	No	No
summersault	Yes	No	No	No

As nouns, somersaulting and summersault are synonyms defined as:

somersaulting and summersault: an acrobatic feat in which the feet roll over the head (either forward or backward) and return

Other synonyms of somersaulting include flip, somersault, somerset, summerset.

somersaulting (noun)	summersault (noun)
an acrobatic feat in which the feet roll over the head (either forward or backward) and return	an acrobatic feat in which the feet roll over the head (either forward or backward) and return