Add short description to archive page – Woo

add_action( 'ocean_after_archive_product_title', 'wc_add_short_description' );
/**
 * WooCommerce, Add Short Description to Products on Shop Page with Character limit
 *
 */
function wc_add_short_description() {
    global $product;

    ?>
        <div itemprop="description">
            <?php echo substr( apply_filters( 'the_content', $product->post->post_content ), 0,140 ); echo '...' ?>
        </div>
    <?php
}


https://wpbeaches.com/woocommerce-add-short-or-long-description-to-products-on-shop-page/