Sentence:  If of the founders of glottochronology Swadesh has escaped our steady plodding , and Lees has repudiated his own share in the founding , that is <WSD>no</WSD> reason why we should swerve . 
Meaning of the word marked with <WSD> tags:  quantifier; used with either mass nouns or plural count nouns for indicating a complete or almost complete lack or zero quantity of