Havah is the ancient name of Eve the mother of all humanity. It is also used to express the feminine divine in a well known construct. In this form Jah ( God ) and Havah are joined to become Jehovah ( multiple spellings abound but this is obviously the most common )
Jah + Havah = Jehovah. A reference to he androgynous nature of God and also of our original progenitor/progenetrix who before the intrusion of sin required no mechanism of reproduction as they were intended to be Gods companions for eternity. We still are, praise the Lord!