firefly-iii/resources/lang/en_US/pagination.php

<?php
/**
 * pagination.php
 * Copyright (C) 2016 thegrumpydictator@gmail.com
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.  See the LICENSE file for details.
 */

return [
    'previous' => '&laquo; Previous',
    'next'     => 'Next &raquo;',
];