voluminous (adj) – filling many volumes or having great size, fullness, or extent
BREAKDOWN: VOL- (roll) + -OUS (full of)
— volume is a book or a group of papers bound together; from a roll of parchment
— volume also means the measure of an object or space or the loudness of sound
This word is built on the root VOL-, which means to turn over or to roll.
Common VOL- words include evolve, evolution, and revolve.
More esoteric VOL- words include devolvement and volute.