The abbreviation "nvm" stands for "never mind." It is commonly used in informal communication, especially in texting and online chatting, to indicate that something is not worth worrying about or to dismiss a previous statement or question. Essentially, when someone says "nvm," they are suggesting that the issue or topic at hand is no longer relevant or important.
The abbreviation "nvm" is derived from the phrase "never mind," which has its roots in English, combining the word "never" (meaning not at any time) and "mind" (meaning to pay attention to or be concerned about).