Salvation
Isaish is a rare variant of the Hebrew name Isaiah. It derives from the name Yeshayahu, combining 'yasha' (to save) and 'yah' (referring to the Hebrew God). While Isaiah is a major biblical prophet, this specific spelling is an uncommon modern variation.
Less common today
Isaish isn't in the latest US Top 1000. It last peaked at #6,818 in 2002.
US births per 5-year period, 1990βpresent (SSA data).