languor

A state of the body or mind caused by exhaustion or disease and characterized by a languid or weary feeling; lassitude; (countable) an instance of this.

Melancholy caused by lovesickness, sadness, etc.; (countable) an instance of this.

Dullness, sluggishness; lack of vigour; stagnation.

Listless indolence or inactivity, especially if enjoyable or relaxing; dreaminess; (countable) an instance of this.

Heavy humidity and stillness of the air.

Sorrow; suffering; also, enfeebling disease or illness; (countable, obsolete) an instance of this.