Definition (full): Artaxerxes -- a son and successor of Xerxes, king of Persia
Strong's Exhaustive Concordance
Or Artachshasht {ar-takh- shasht'}; or by permutation Artachshactu {ar-takh-shast'}; of foreign origin; Artachshasta (or Artaxerxes), a title (rather than name) of several Persian kings -- Artaxerxes.
KJV: And in the days of Artaxerxes wrote Bishlam, Mithredath, Tabeel, and the rest of their companions, unto Artaxerxes king of Persia; and the writing of the letter was written in the Syrian tongue, and interpreted in the Syrian tongue.
NASB: And in the days of Artaxerxes, Bishlam, Mithredath, Tabeel and the rest of his colleagues wrote to Artaxerxes king of Persia; and the text of the letter was written in Aramaic and translated from Aramaic.
KJV: This is the copy of the letter that they sent unto him, even unto Artaxerxes the king; Thy servants the men on this side the river, and at such a time.
NASB: this is the copy of the letter which they sent to him: "To King Artaxerxes: Your servants, the men in the region beyond the River, and now
KJV: Now when the copy of king Artaxerxes' letter was read before Rehum, and Shimshai the scribe, and their companions, they went up in haste to Jerusalem unto the Jews, and made them to cease by force and power.
NASB: Then as soon as the copy of King Artaxerxes' document was read before Rehum and Shimshai the scribe and their colleagues, they went in haste to Jerusalem to the Jews and stopped them by force of arms.