WordPress get the singular name of the taxonomy the term archive belongs to

archive_tax_name.php

<?php
function archive_tax_name() {
    $archive_tax_name = null;
    if( is_archive() && is_category() ) {
        $queried_object = get_queried_object();
        $queried_object_taxonomy = $queried_object->taxonomy;
        $taxonomy = get_taxonomy($queried_object_taxonomy);
        $archive_tax_name = $taxonomy->labels->singular_name;
    }
    return $archive_tax_name;
}