DICT.TW Dictionary Taiwan

 som·er·sault /ˈsʌmɚ/
 翻觔斗(vi.)翻觔斗

 Som·er·sault Som·er·set n.  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.”
 Now I'll only
 Make him break his neck in doing a sommerset.   --Beau. & Fl.
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 somersault
      n : an acrobatic feat in which the feet roll over the head
          (either forward or backward) and return [syn: somersaulting,
           flip]
      v : do a somersault