Sentence:  April 9, 1940. Then one of our RAF customers had the <WSD>rind</WSD> to suggest that ‘you women ought to give up smoking for the duration you know'. "This", when they have the alternative of smoking pipes which is not open to us, [...] 
Meaning of the word marked with <WSD> tags:  The gall, the crust, the insolence; often as "the '''immortal rind'''"