Yours, Etc.: Origins and Uses of 8 Sign-Offs
early 13c., "slice of bread; thin piece cut off," perhaps from an unrecorded Old English *scifa, cognate with Old Saxon sciva, Middle Dutch schive, Dutch schijf, Old High German sciba, German Scheibe; see skive (v.1). From 1869 as "thin, flat cork for a bottle."
: being shivved by Johnny Mizzoo
[1912+; fr Romany chiv, ''blade,'' by way of British underworld slang]