"Form of Abraham"
The name Abrahm is commonly a male name from the "Hebrew" origin.
Abrahm is a spelling of Abraham, the Hebrew name of the patriarch in the book of Genesis. The form drops the second a of the standard English spelling and adds no separate meaning of its own. It is not a distinct name in any tradition; it is the same name written differently.
Abraham means "Father of the multitudes.".
The pronunciation of Abrahm is AY-bruhm.