Regally is the adverb from regal. It describes HOW someone does something: in the manner of a king or queen — with dignity, slowly, with the calm certainty of a person who expects to be looked at. She nodded regally. He waved regally from the car. The cat stretched out regally across the whole sofa. Almost every time you meet this word, the person or animal doing the action is not actually royal. That is the point of it. It is a way of describing a manner, and the manner is what matters: unhurried, upright, a bit above the ordinary fuss around them. It sits with verbs of movement and gesture above all — nod, wave, walk, sweep, sit, incline one's head. You would not normally say she cooked regally, because cooking is not a gesture people watch. It is a writer's word, at home in stories and descriptions, rare in speech. And it very often carries a smile: describing a toddler or a cat as behaving regally is one of English's gentler jokes, because the grand word does not fit the small creature. Whether it is admiring or teasing depends entirely on who is being described.

以帝王般的姿態；雍容地、氣派十足地。多用來形容動作神態（點頭、揮手、走路），常帶一點調侃。