Sentence:  A few <WSD>dialecticisms</WSD> used by both the author and the characters were replaced by the 1962 editors of Collected Works in the stories that were not included in the 1956 editions. On balance, the early stories have retained proportionately more original <WSD>dialecticisms</WSD> [...]. In my very conservative estimate, well over two hundred corrections affecting dialectal words were made. 
Meaning of the word marked with <WSD> tags:  A dialectal word or phrase (especially if borrowed into another dialect or into 'standard' language).