Some emotions that start with M are mad, mean, morbid, and maudlin.Mad
e and m
terror?
Jealousy
ragged
As examples of sad emotions starting with a are aggrieved or anguished
RageRegretRemorseradiant
William M. Wentworth has written: 'Social Perspectives on Emotions'
irritated, ignored
quiet
Love
Empathy - enthusiasm- elation - are considered (by me) to be emotions.