Periplum

Periplum is defined in the Oxford English Dictionary as being "[o]riginally and chiefly in the poetry of Ezra Pound," and as being equivalent in meaning to the English word "periplus." The word is derived from the Greek περι (a prefix meaning around or about) + πλοῦς (voyage). As a noun, Pound uses "periplum" simply to refer to a voyage or journey, as in canto 74, line 3: "The great periplum brings in the stars to our shore." Here the "great periplum" refers to the daily journey made by the Sun God, Helios. "Periplum" is also used in The Cantos adverbially, as we see in this example from canto 59: