sigh 
(sī)
(sī)v. sighed, sigh·ing, sighs
v.intr.
1.
a. To exhale audibly in a long deep breath, as in weariness or relief.
b. To emit a similar sound: willows sighing in the wind.
2. To feel longing or grief; yearn: sighing for their lost youth.
v.tr.
1. To express with or as if with an audible exhalation.
2. Archaic To lament.
n.
The act or sound of sighing.
[Middle English sighen, probably back-formation from sighte, past tense of siken, to sigh, from Old English sīcan.]
sigher n.