"Rais" is Arabic (Means Leader, Chief)
"Riaz" is also Arabic (Means Meadow, Garden)
"Raiz" is not a Jewish name.
Raiz was born on April 22, 1967, in Naples, Campania, Italy.
Raiz forte is a Portuguese equivalent of 'horseradish' [Armoracia rustica].
Carmela Raiz has written: 'Blue star over Red Square' -- subject(s): Biography, Refuseniks, Jews
the root
The cast of Raiz - 2013 includes: Eugenio Morales Mercedes Mujica Elsa Poblete Celia Uribe
Raiz - 2013 was released on: Chile: 2013 USA: 8 January 2014 (Palm Springs International Film Festival)
raiz (rahYEETH) (TH as in 'thin')
The cast of Raiz Quadrada de 48 - 2011 includes: Leandro Cabral Ana Guiomar Joana Santos
It can be a Jewish name, but as in most Jewish surnames, it can also be a non-Jewish name.
Goldston can be a Jewish name, but is not always a Jewish name.
Although it is not a Jewish surname in its origin, any name can be a Jewish name if it is the name of a Jewish person
Any name is is a Jewish name since anyone can choose to be Jewish.