By Carolyn Brown For the Valley Advocate Writing a book about the deeply painful and complex history of the n-word is a significant undertaking, as is writing a memoir about a complicated relationship with one’s father. For Smith College professor Elizabeth Stordeur Pryor — daughter of comedian Richard Pryor, who famously used the word in his material often — the two have an inextricable and powerful overlap. Pryor’s newly debuted book, “Somethi…