Sentence:  Fortune's elf child and disinherited darling, young and randy and more a Jolly Jack Tar than anyone human could conceivably be; <WSD>thews</WSD> and chin taut against a sixty-knot gale with a well-broken-in briar clenched in the bright defiant teeth 
Meaning of the word marked with <WSD> tags:  Muscle or sinew.