a sob
• (n.) A sigh or sobbing; also, a hiccough.
Sin'gult noun [ Latin singultus .] A sigh or sobbing; also, a hiccough. [ Obsolete] Spenser. W. Browne. 
singult A sigh or sobbing; gasping; also, a hiccough or hiccup. An involuntary spasmodic contraction of the diaphragm, causing a beginning inspiration that is suddenly checked by closure of the glottis, causing a characteristic sound. Some medical researchers believe that people hiccup because their bodies are trying to push out air that is trapp...