(form-of, noun-from-verb) verbal noun of نَهَى (nahā) (form I)
an order not to do something, a prohibition, a proscription
negative imperative, prohibitive; a grammatical form used to express prohibition or to instruct someone not to perform a particular action. In Arabic grammar, it uses the word لَا (lā) followed by the verb, as in لَا تَذْهَبْ (lā taḏhab, “do not go”).