Sentence:  "... I've a job of work to finish tonight; mourning, as must be in time for the funeral to-morrow; and grandfather has been out moss- hunting, and will not be home till late."/ "Oh, how charming it will be! I'll help you if you're <WSD>backward</WSD>. Have you much to do?" 
Meaning of the word marked with <WSD> tags:  Late or behindhand.