Sentence:  The heavenly bodies may keep their secrets two or three thousand years yet; but one or other of them will betray them to some wakeful favorite, some <WSD>Endymion</WSD> beyond Latmos, perhaps in regions undiscovered, certainly in uncalculated times. 
Meaning of the word marked with <WSD> tags:  A man described variously as a handsome Aeolian shepherd, hunter, or king, who was loved by Selene or Artemis (the two being often conflated) and was said to rule and live at Olympia in Elis, as well as venerated and said to reside in Caria, southwest Asia Minor, on Mount Latmus.