T. S. Eliot 
Ara Vus Prec 

This volume contains some of Eliot’s earliest work that did not make the 'final cut’ when he put together his Collected Poems many years later. The title Ara Vus Prec contains a spelling mistake. It is meant to be Ara Vos Prec, referring to a line by Arnaut Daniel, the great renaissance troubadour poet, who features in Dante’s Inferno. The provencal words mean literally "to you I pray" or more loosely "I beg you" and Eliot apologised that he didn’t know enough Provencal and that’s why he got it wrong. After copies went to print, the 'u’ was fixed to an 'o’ including labels being reattached to the spine. Very early and rare Eliot work. (Goodreads)