megilloth

The skins when written upon were formed into rolls (megilloth).

Smith's Bible Dictionary 1884

(megilloth) placed immediately after the Pentateuch in manuscripts of the Jewish Scriptures.

Commentary Critical and Explanatory on the Whole Bible 1871

"volume of Esther", or simply "the volume" (megillah) to distinguish it from the other four volumes (megilloth), written on separate rolls, which were read in the synagogues on certain feast days.

The Catholic Encyclopedia, Volume 5: Diocese-Fathers of Mercy 1840-1916 1913