TgO Lev7:21 :כָל מְסָאַב בִסאוֹבַת"בְסוֹאְבָת" אְנָשָא‏ : anything unclean that is from human uncleanness
See the entire entry for sōˀăḇā, sōˀăḇtā n.f. uncleanness