I did it by modifying abstract-invoice.php in function add_description_column_data:
line 427:
$product = wc_get_product( $item[‘product_id’] );
$product_description = $product->get_description();
echo “<br>”;
echo esc_html( $product_description );
That’s actually for the description and not the short description (excerpt)
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This reply was modified 6 years ago by yamo.