Sentence:  The chief mate of the Pequod was Starbuck, a native of Nantucket, and a Quaker by descent. [...] His pure tight skin was an excellent fit; and closely wrapped up in it, and embalmed with inner health and strength, like a revivified Egyptian, this Starbuck seemed prepared to endure for long ages to come, and to endure always, as now; for be it Polar snow or torrid sun, like a patent chronometer, his interior vitality was <WSD>warranted</WSD> to do well in all climates. 
Meaning of the word marked with <WSD> tags:  To guarantee (something) to be (of a specified quality, value, etc.).