Arduouslying is not a word recognized in the English language. However, the word "arduous" is a common adjective used to describe tasks or situations that are difficult, tiring, or complex. Synonyms for arduous include laborious, strenuous, grueling, challenging, demanding, and tough. These words can be used interchangeably to describe something that requires great effort, endurance, or perseverance. For example, running a marathon can be a laborious task, studying for a difficult exam can be a challenging experience, and doing yoga poses can be a strenuous workout. No matter which synonym you choose, it's clear that arduous tasks require determination, grit, and resilience.