"Raissa" (spelled in English with
2 's' to avoid the misreading of 'Raiza') is a common Russian female
name with diminutive "Raya." The latter means 'paradisiac' in Russian (or 'from the paradise') and 'princess' or 'mistress' in Arabic, which is why the saying "She is such a raissa" also means "She is such a royalty" (whether 'spoiled
brat' or 'lofty' and '
cute'). Historically speaking, the
name originates from the Ancient Greek 'Herais' Ηραις, a derivative from the
name of the Greek goddess Hera, from which we have words like Hero, Heroic, and even Heraldry (Nobility). That's the main root and meaning of the name RAISSA = Heroic and Noble, with the connotation of Divine (Paradisiacal).