▁of ▁its ▁core ▁voc ab ul ary ▁cannot ▁be ▁related ▁to ▁them ▁or ▁other ▁languages , ▁such ▁as ▁the ▁numer als ▁and ▁words ▁for ▁" blo od " ▁and ▁" eg g ". ▁Sch ol ars ▁state ▁that ▁less ▁than ▁ 2 5 % ▁of ▁the ▁language ' s ▁original ▁voc ab ul ary ▁is ▁used ▁today . ▁There ▁are ▁no ▁longer ▁any ▁surv iving ▁mon ol ing ual ▁speak ers ▁of ▁the ▁language . ▁Those ▁well - vers ed ▁in ▁modern ▁N ih ali ▁are ▁likely ▁to ▁speak ▁vari eties ▁of ▁H indi , ▁Mar ath i ▁or ▁K ork u ▁as ▁well . ▁ ▁For ▁centuries , ▁most ▁N ih ali ▁have ▁often ▁worked ▁as ▁agricult ural ▁labour ers , ▁for ▁speak ers ▁of ▁languages ▁other ▁than ▁their ▁own . ▁In ▁particular , ▁N ih ali ▁labour ers ▁have ▁often ▁worked ▁for ▁members ▁of ▁the ▁K ork u ▁people , ▁and ▁are ▁often ▁b iling ual ▁in ▁the ▁K ork u ▁language . ▁Because ▁of ▁this ▁history , ▁N ih ali ▁is ▁sometimes ▁used ▁by ▁its ▁speak ers ▁only ▁to ▁prevent ▁native ▁K ork u ▁speak ers ▁and ▁other ▁out s iders ▁from ▁understanding ▁them . ▁ ▁Research ▁into ▁the ▁N ih ali ▁language ▁Francis cus ▁K ui per ▁was ▁the ▁first ▁to ▁suggest ▁that ▁N ih ali ▁may ▁be ▁un related ▁to ▁any ▁other ▁Indian ▁language , ▁with ▁the ▁non - K ork u , ▁non - D rav id ian ▁core ▁voc ab ul ary ▁being ▁the ▁rem nant