sob 
(sŏb)
(sŏb)v. sobbed, sob·bing, sobs
v.intr.
1. To weep aloud with convulsive gasping; cry uncontrollably. See Synonyms at cry.
2. To make a sound resembling that of loud weeping.
v.tr.
1. To utter with sobs.
2. To put or bring (oneself) into a specified condition by sobbing: sob oneself to sleep.
n.
The act or sound of sobbing.
[Middle English sobben, perhaps of Low German origin.]
sobbing·ly adv.