WooCommerce - Alter add to cart text

functions.php

/**
 * Alter add to cart text.
 * 
 * @return string New text.
 */
function alter_add_to_cart_text() {
    return __( 'Orça' );
}

add_filter( 'single_add_to_cart_text', 'alter_add_to_cart_text' );
add_filter( 'variable_add_to_cart_text', 'alter_add_to_cart_text' );
add_filter( 'grouped_add_to_cart_text', 'alter_add_to_cart_text' );
add_filter( 'external_add_to_cart_text', 'alter_add_to_cart_text' );
add_filter( 'add_to_cart_text', 'alter_add_to_cart_text' );