nix

noun pl. nix′es or nix′enik′sə

Gmc. Folklore a water sprite, usually small and of human or partly human form

Etymology: Ger nix, masc., nixe, fem. < OHG nihhus, sea beast, nicchussa, water sprite, akin to OE nicor, ON nykr, water sprite < Gmc *nik-, *nikwus-, water spirit < IE base *neigw-, to wash > Sans nḗnēkti, (he) washes

adverb

1. no
2. not at all

Etymology: Ger nichts

1. stop; don't do that
2. I forbid, refuse, disagree, etc.

noun

1. nothing
2. refusal or rejection

transitive verb

to disapprove of or put a stop to