This is the 5084th most frequent Japanese word.
託し
"託し" means "entrustment" or "something entrusted."
In this sentence, '託し' signifies the act of entrusting or giving responsibility for something to someone else.
彼は重要な書類を秘書に託した。
He entrusted the important documents to his secretary.
Here, '託し' expresses the metaphorical act of entrusting an aspiration or emotion to an abstract concept, such as the future.
希望を未来に託して生きる。
Living by entrusting hope to the future.
In this case, '託し' indicates relying or depending on efforts to achieve a goal.