Complex sentence: Fairman establishes that most current usages have connotations distinct from its denotation of sexual intercourse, and asserts that rather than having sexual meaning, the word's use is most commonly associated with power.
Split into simpler sentences: Fairman establishes that most current usages have connotations distinct from its denotation of sexual intercourse. He writes that, rather than having sexual meaning, the word's use is most commonly associated with power.