Sterili is transferred by hypallage from litus; siccum serves no purpose beyond providing a balancing epithet.
"The Last Poems of Ovid"
Ovid
The usual explanation, which makes insertas an epithet transferred by a sort of hypallage from Luna to fenestras, is extremely violent, and makes the word little more than a repetition of se fundebat.
"The Aeneid of Virgil"
Virgil
The Rhetoricians call this an hypallage, because one word is substituted for another: but the Grammarians call it a Metonymy, because the words are shifted and interchanged.
"Cicero's Brutus or History of Famous Orators; also His Orator, or Accomplished Speaker."
Cicero