This is another onomatopoetic word. The word sounds like a whisper and as such, the verb actually means ‘to wisper’ or ‘to be quiet’. Quiet here does not necessarily mean completely silent, now sounds like the rustling of leaves in a weak wind ‘sxa as well. Add a lot of comical half.sentences and wild gestures here in an attempt of an explanation.
Example: Sxa’ta’iln exkola’het’ra xiky’het’jet! (Whisper-NEG-IMP2PL school-LOC class-TEMP: Don’t whisper in school during class!) listen
Wow. Okay, when I saw that spelled out, I thought to myself, “How on Earth do you pronounce a word beginning with sx?” And yet, there it is. Very impressive!