GRADUS
Etymology
Noun
gradus (plural graduses)
A handbook used as an aid in a difficult art or practice, specifically, a dictionary of Greek or Latin prosody used as a guide in writing of poetry in Greek or Latin.
Anagrams
• Dagurs, Dugars, Guards, draugs, durags, guards
Source: Wiktionary
Gra"dus, n. Etym: [From L. gradus ad Parnassum a step to Parnassus.]
Definition: A dictionary of prosody, designed as an aid in writing Greek or
Latin poetry.
He set to work . . . without gradus or other help. T. Hughes.
Source: Webster’s Unabridged Dictionary 1913 Edition