What is good morning in delta language?

There is no language called "Delta language". It's possible you're thinking of:

* The Delta dialect of the Niger-Congo language family: There are many languages in this family, so you'd need to be more specific.

* Delta Airlines: This is a company, not a language.

* A fictional language: Perhaps you're referring to a language from a book, movie, or game.

Please provide more information so I can help you find the correct greeting!