5 letters · 15 points in Scrabble
originPig Latin version of nix; possibly the only Pig Latin word to enter common American English besides amscray and igpay. Ixnay and amscray were used widely in The Three Stooges shorts and The Flintstones episodes, possibly the main sources of popularity for the words.
Etymology from Wiktionary, CC BY-SA 3.0