A nice useful word; it’s a shame it’s obsolete. Think about it for a second, you could use this in all kinds of situations. Fun bonus fact: it’s a combination of two words, one of which is “all”. So there’s another obsolete word coming up when I eventually get to the next letter of the alphabet.
1. As a group or total; altogether, collectively; all together. Also: one and all.
2. Completely, entirely; utterly.
3. Forthwith; immediately, presently.