Noah Webster
Mood
MOOD, noun [Latin modus. See Mode.]
1. The form of an argument; the regular determination of propositions according to their quantity, as universal or particular, and their quality, as affirmative or negative.
2. Style of music.
3. The variation of a verb to express manner of action or being. [See Mode.]
In the foregoing senses, and in all cases, this word when derived from the Latin modus, ought to be written mode, it being a distinct word from the following.
MOOD, noun [Latin animus.]
1. Temper of mind; temporary state of the mind in regard to passion or feeling; humor; as a melancholy mood; an angry mood; a suppliant mood
2. Anger; heat of temper.
[In this sense Little Used, unless qualified by an adjective.]