Merriam-Webster Collegiate Dictionary - voluminous

 adjective  Etymology: Late Latin voluminosus, from Latin volumin-, volumen  Date: 1611  1. consisting of many folds, coils, or convolutions ; winding  2.  a. having or marked by great volume or bulk ; large long ~ tresses; also full a ~ skirt  b. numerous trying to keep track of ~ slips of paper  3.  a. filling or capable of filling a large volume or several volumes a ~ literature on the subject  b. writing or speaking much or at great length a ~ correspondent  • ~ly adverb  • ~ness noun