Sentence:  During the spring in Quebec and Ontario, maple syrup is harvested, or "<WSD>sugared</WSD> off," a process which is usually celebrated as a social event. 
Meaning of the word marked with <WSD> tags:  In making maple sugar, to complete the process of boiling down the syrup till it is thick enough to crystallize; to approach or reach the state of granulation; with the preposition "off".