4 letters · 7 points in Scrabble
noun a fricative sound (especially as an expression of disapproval)
noun a cry or noise made to express displeasure or contempt
verb make a sharp hissing sound, as if to show disapproval
originFrom Middle English hissen, probably of onomatopoeic origin (compare Arabic هَسْهَسَ (hashasa)). Compare Middle Dutch hissen, hisschen (“to chase away, shoo”), Middle Low German hissen (“to chase, hound, incite”).
Etymology from Wiktionary, CC BY-SA 3.0