Cnidus or Gnidus = "nettled"
1) a peninsula [now Cape Crio] and a city by the same name, situated at the extreme south west of the peninsula of Asia Minor, on a promontory now called Cape Crio, which projects between the islands of Cos and Rhodes
Part of Speech: noun proper locative
Probably of foreign origin; Cnidus, a place in Asia Minor: - Cnidus.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root Κνίδος; click on the second column to search for that grammatical form of the root Κνίδος; click on the third column to search for that word and grammatical form; click on the total to search for the root Κνίδος.