Sentence:  Tyrwhitt pointed out that the <WSD>Rowleian</WSD> dialect was not English of the fifteenth century, nor of any century, but a grotesque jumble of archaic words of very different periods and dialects. 
Meaning of the word marked with <WSD> tags:  Of or pertaining to the work of (fictional) poet Thomas Rowley, a pseudonym of Thomas Chatterton (1752-1770), English poet.