Sentence:  You may imagine the young people brushed up after the labours of the day, and making this novelty, as they would make any novelty, the excuse for walking together and enjoying a trivial flirtation. You may figure to yourself the hum of voices along the road in the <WSD>gloaming</WSD>... 
Meaning of the word marked with <WSD> tags:  twilight, as at early morning (dawn) or (especially) early evening; dusk