Naught (noun)

1. Nothing or zero.
2. A state or condition of being of no importance or value.

Origin:

From old english nāwiht, from nā "not" + wiht "thing".

Examples:

1. He knew naught of the conspiracy.
2. The experiment yielded naught.
3. The report came to naught.
4. He accomplished naught during his tenure in office.
5. The search for the missing treasure came to naught.