We have added following words in version 2.9 you can add them your custom language file also

$lang['Template'] = 'Template';
$lang['Templates'] = 'Templates';
$lang['Manage Email Templates'] = 'Manage Email Templates';
$lang['Manage SMS Templates'] = 'Manage SMS Templates';
$lang['Body'] = 'Body';
$lang['Import'] = 'Import';
$lang['Stock Alert'] = 'Stock Alert';
$lang['Alert Quantity'] = 'Alert Quantity';
$lang['Import Products'] = 'Import Products';
$lang['Import Customers'] = 'Import Customers';
$lang['Cloud Backup'] = 'Cloud Backup';
$lang['Stock Transfer'] = 'Stock Transfer';
$lang['Stock Transfer Log'] = 'Stock Transfer Log';
$lang['Transfer From'] = 'Transfer From';
$lang['Transfer To'] = 'Transfer To';
$lang['Stock Return'] = 'Stock Return';
$lang['Stock Damage'] = 'Stock Damage';
$lang['Product Warranty'] = 'Product Warranty';
$lang['Promo Codes'] = 'Promo Codes';
$lang['Active'] = 'Active';
$lang['Inactive'] = 'Inactive';
$lang['Used'] = 'Used';
$lang['Order Date'] = 'Order Date';
$lang['Expiry Date'] = 'Expiry Date';
$lang['Client Accounts'] = 'Client Accounts';
$lang['Client Account'] = 'Client Account';
$lang['Client Balance'] = 'Client Balance';
$lang['Add Balance'] = 'Add Balance';
$lang['From Client Balance'] = 'From Client Balance';
$lang['Enable Promo'] = 'Enable Promo';
$lang['Enable Client Account'] = 'Enable Client Account';