WooCommerce - Shorten product titles to 5 words

<?php
  // shorten WooCommerce product titles to 5 words
  // code goes in functions.php for your child theme

  // not tested by me

  add_filter( 'woocommerce_product_title', 'shorten_woocommerce_product_title', 10, 2 );
  function shorten_woocommerce_product_title( $title, $id ) {
    $max_words = 5;
    if ( (is_front_page() || is_shop() || is_product_tag() || is_product_category() )
          && get_post_type( $id ) === 'product' ) {
      $title_words = explode(" ", $title);
      if ( count($title_words) > $max_words ) {
        return implode( " ", array_slice( $title_words, 0, $max_words ) ) . '...';
      } else {
        return $title;
      }
    } else {
      return $title;
    }
  }