"Languid" describes the kind of sluggishness that one often experiences from fatigue or weakness ("the illness left her feeling languid"). "Languorous" applies more to someone who just doesn't feel the will to get up and do anything ("he felt languorous on a rainy Sunday afternoon").

What is the verb for languid?

languish. (intransitive) To lose strength and become weak; to be in a state of weakness or sickness. [from 14th c.] (intransitive) To pine away in longing for something; to have low spirits, especially from lovesickness.

What is a languid mood?

You can describe yourself as languid when you have that feeling of not being entirely awake — kind of lazy in the mind. Definitions of languid. adjective. lacking spirit or liveliness. “a languid mood”