H5406–נִשְׁתְּוָן–nish.te.van

And in the days of Artaxerxes wrote Bishlam, Mithredath, Tabeel, and the rest of his companions, unto Artaxerxes king of Persia; and the writing of the letter was written in the Aramaic character, and set forth in the Aramaic tongue.

הַֽנִּשְׁתְּוָ֔ן (נִּשְׁתְּוָ֔ן) nish.te.Van “letter”

Now this is the copy of the letter that the king Artaxerxes gave unto Ezra the priest, the scribe, even the scribe of the words of the commandments of the LORD, and of His statutes to Israel:

הַֽנִּשְׁתְּוָ֗ן (נִּשְׁתְּוָ֗ן) nish.te.Van “letter”