Crossword clues for the word: AETHER The word AETHER has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for AETHER Showing 1 to 5 of 5 results Clue(s) Ancient element Greek god of the upper air Heavens; clear sky: Var. Heavens: Var. Michelson and Morley failed to find it