akaunting/modules/OfflinePayment/Resources/lang/en-GB/offlinepayment.php

<?php

return [

    'offlinepayment'   => 'Offline Payments',
    'add_new'          => 'Add New',
    'edit'             => 'Edit: :method',
    'code'             => 'Code',
    'order'            => 'Order',
    'payment_gateways' => 'Offline Payment Methods',

];