Somersault
Pronunciation : Som"er*sault, Som"er*set
Part of Speech : n.
Etymology : [F. soubresaut a jump, leap, OF. soubresault, It. soprassalto an overleap, fr. L. supra over + saltus a leap, fr. salire to leap; or the French may be from Sp. sobresalto a sudden asault, a surprise. See Supra, and Salient.]
Definition : Defn: A leap in which a person turns his heels over his head and lights upon his feet; a turning end over end. [Written also summersault, sommerset, summerset, etc.] "The vaulter's sombersalts." Donne. Now I'll only Make him break his neck in doing a sommerset. Beau. & Fl.
Source : Webster's Unabridged Dictionary, 1913