Sentence:  But looking upwards in the blaze of the moon I suddenly saw colossi sitting near, and towering up and blotting out the stars and filling the night with blackness; and at those idols' feet I saw praying and making <WSD>obeisance</WSD> kings and the days that are and all times and all cities and all nations and all their gods. 
Meaning of the word marked with <WSD> tags:  Demonstration of an obedient attitude, especially by bowing deeply; a deep bow which demonstrates such an attitude.