a dictionary of prosody for help
in writing Greek or Latin poetry
a book of piano
studies, études, etc. arranged in a progressive
order of difficulty
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'gradus'< L Gradus (ad Parnassum), lit., step (to Parnassus), title of a book on prosody