Muted
Part of speech: verb
Definition: To silence, to make quiet.
Example sentence: Grief is exhausting. When you learn - maybe through my age or experience - trying to harness the energy, whatever it is, muted energy or a concentration to find yourself in a place? You try to use it for when it's really necessary and can arrive.
Muffled
Part of speech: verb
Definition: To wrap (a person, face etc.) in fabric or another covering, for warmth or protection; often with up.