iassign_tinymce/lang/pt_br/tinymce_iassign.php

<?php
/**
 * Strings for 'iassign' plugin.
 *
 * @author Luciano Oliveira Borges
 * @package   tinymce_iassign_lang
 * @copyright 2013 iMatica (<a href="http://www.matematica.br">iMath</a>) - Computer Science Dep. of IME-USP (Brazil)
 * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

$string['pluginname'] = 'Insere uma atividade interativa (iTarefa) pelo editor TinyMCE';
/* All lang strings used from TinyMCE JavaScript code must be named 'pluginname:stringname', no need to create langs/en_dlg.js */
$string['iassign:desc'] = 'Insere uma atividade interativa (iTarefa)';