Sentence:  Godolphin Horne was Nobly Born; / He held the human race in scorn, / And lived with all his sisters where / His father lived, in Berkeley Square. / And oh! The lad was deathly <WSD>proud</WSD>! / He never shook your hand or bowed, / But merely smirked and nodded thus: / How perfectly ridiculous! / Alas! That such Affected Tricks / Should flourish in a child of six! 
Meaning of the word marked with <WSD> tags:  Having too high an opinion of oneself; arrogant, supercilious.