Sentence:  [I]n a common sailor's life sleep is not a regular thing as we have it on shore, and perhaps that <WSD>staid</WSD> glazy and sedate-looking eye, which a hard-worked seaman usually has, is really caused by broken slumber. He is never completely awake, but he is never entirely asleep. 
Meaning of the word marked with <WSD> tags:  Always fixed in the same location; stationary.