The author quelled under the correction...
One of the pitfalls of being a voracious reader is that an author's vocabulary can be a bit out of step with the rest of the population's. A turn of phrase that sounds perfectly normal to the writer might be an anachronistic monstrosity to the average reader that will send them scrambling for the nearest dictionary. This will often be futile unless the dictionary in question includes archaic meanings. Or as a comedian once put it.
"You cannot have archaic and edit too!"