from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. All together; entirely; without modification.
from The Century Dictionary and Cyclopedia
- All at a gulp; altogether; all at once: as, he swallowed it holus-bolus.
- n. The whole; all, taken collectively: as, he drove out the holus-bolus of them.
Unknown. Possibly of Ancient Greek origin, from ὅλος ("whole") and βόλος ("a throw with a casting net"), or βῶλος ("lump"). May have been Latinized (i.e., -us ending as in masculine singular in Latin, as opposed to -os ending for masculine singular in Greek). (Wiktionary)