- nix (n.)
- "nothing, none," 1789, from German nix, dialectal variant of nichts "nothing," from Middle High German nihtes, from genitive of niht, nit "nothing," from Old High German niwiht, from ni, ne "no" (see un-) + wiht "thing, creature" (cf. naught).
- nix (v.)
- "cancel, refuse, forbid," 1903, from nix (n.). Related: Nixed; nixing.