Strong’s Hebrew
H3306 — yaphach
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
יָפַח
yaphach — pronounced yaw-fakh
a primitive root; properly, to breathe hard, i.e. (by implication) to sigh:--bewail self.
1 occurrence in the KJV.
Jeremiah 4:31
For I have heard a voice as of a woman in travail, and the anguish as of her that bringeth forth her first child, the voice of the daughter of Zion, that bewaileth herself, that spreadeth her hands, saying, Woe is me now! for my soul is wearied because of murderers.