Definition of sell over:
(n) :
a long piece cut or
rent off; a sharp,
slender fragment; a
splinter; a strand, or slender roll, of cotton or other
fiber in a loose, untwisted state, produced by a carding machine and ready for the roving or slubbing which preceeds spinning
(v) :
to cut or divide into long, thin pieces, or into very small pieces; to cut or rend lengthwise; to slit; as, to sliver wood