somersault vs summersault

somersault and summersault both are nouns.

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

As nouns, somersault and summersault are synonyms defined as:

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

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

somersault (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

somersault (verb)	summersault (verb)
do a somersault