Complex sentence: The English name Ahasuerus is derived from a Latinized form of the Hebrew Áchashwerosh (אחשורוש), which is a Hebrew rendering of the Babylonian Achshiyarshu: both this and the Greek Ξέρξης are renderings of the Old Persian Xšayāršā (also spelt Khsayârshâ).
Split into simpler sentences: The English name Ahasuerus is derived from the Latin transliteration of the Hebrew Áchashwerosh (אחשורוש). This in turn is the Hebrew equivalent of the Babylonian Achshiyarshu: both this and the Greek Ξέρξης are transliterations from the Old Persian Xšayāršā (also spelt Khsayârshâ).