The Word count option in Assignment has an empty label, which can be confusing for screenreader users.

The label is hidden with accesshide anyway (as it's part of a grouped control), so whatever text is added would only be seen by screenreaders anyway.

Currently the code intentionally passes in an empty string.

mod/assign/submission/onlinetext/locallib.php
81: $mform->addGroup($wordlimitgrp, 'assignsubmission_onlinetext_wordlimit_group', $name, ' ', false);