Change the "Proceed to PayPal" button text in the WooCommerce checkout screen

/* Change the "Proceed to PayPal" button text in the WooCommerce checkout screen
 * Add this to your theme's functions.php file
 */

add_filter( 'gettext', 'custom_paypal_button_text', 20, 3 );
function custom_paypal_button_text( $translated_text, $text, $domain ) {
switch ( $translated_text ) {
case 'Proceed to PayPal' :
$translated_text = __( 'Proceed to Payment', 'woocommerce' );
break;
}
return $translated_text;
}