"Variant of Isaac"
The name Aizik is commonly a male name from the "Hebrew" origin.
Aizik is a Yiddish form of Isaac, the name carried in Hebrew as Yitzhak. It is attested as a given name among Yiddish-speaking Jews in Eastern Europe and in communities descended from them, where it also served as a familiar form alongside the fuller Yitzkhok. In United States birth records the spelling Aizik first appears in 1999.
Isaac means "He will laugh, Laughter, God smiles.".
The pronunciation of Aizik is AY-zik.