Sentence:  "Mid-Lent, and the Enemy grins," remarked Selwyn as he started for church with Nina and the children. Austin, knee-deep in a dozen Sunday supplements, refused to stir; poor little Eileen was now <WSD>convalescent</WSD> from grippe, but still unsteady on her legs; her maid had taken the grippe, and now moaned all day: ""Mon dieu! Mon dieu! Che fais mourir!"" 
Meaning of the word marked with <WSD> tags:  recovering one's health and strength after a period of illness