E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
An Arabic word, signifying that point in the heavens which is directly opposite to the zenith.
From zenith down to nadir. From the highest point of elevation to the lowest depth.
Nadir. A representation of the planetary system.
We then lost (1091) a most beautiful table, fabricated of different metals . Saturn was of copper, Jupiter of gold, Mars of iron, the Sun of latten, Mercury of amber, Venus of tin, and the Moon of silver . It was the most celebrated nadir in all England.Ingulphus.