Sentence:  His grey waistcoat sported pearl buttons, and he wore a <WSD>stock</WSD> which set off to admiration a lean and aquiline face which was almost as grey as the rest of him. 
Meaning of the word marked with <WSD> tags:  A necktie or cravat, particularly a wide necktie popular in the eighteenth century, often seen today as a part of formal wear for horse riding competitions.