H4866 מִשְׁבֵּר (mish-bare')

KJV renderings: birth, breaking forth.
Strong's definition: the orifice of the womb (from which the fetus breaks forth)
Derivation: from H7665 (שָׁבַר);

From James Strong's public-domain dictionaries (H), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.