SIGH

I. verb Etymology: Middle English sihen, alteration of sichen, from Old English sīcan; akin to Middle Dutch versiken to ~ Date: 13th century intransitive verb to take a deep audible breath (as in weariness or relief), to make a sound like ~ing , grieve , yearn , transitive verb to express by ~s, to utter ~s over ; mourn , ~er noun II. noun Date: 14th century an often involuntary act of ~ing especially when expressing an emotion or feeling (as weariness or relief), the sound of gently moving or escaping air