Kāraṇika [derivation from preceding] the meaning ought to be "one who is under a certain obligation" or "one who dispenses certain obligations." In usu° S II 257 however used simply in the sense of making: arrow-maker, fletcher. Perhaps the reading should be °kāraka.
(masc, masc, agent, from kāraṇā) torturer; executioner [lit.] causing to do Construction: kāre + aṇā + ika kāraṇā + ika