my·o·si·tis 
(mī′ə-sītĭs)
(mī′ə-sītĭs)n.
Inflammation of a muscle, especially a voluntary muscle, characterized by pain, tenderness, and sometimes spasm in the affected area.
- disestablishmentarian
- disestablishmentarianism
- disesteem
- diseur
- diseuse
- disfavor
- disfeature
- disfeaturement
- disfiguration
- disfigure
- disfigurement
- disfranchise
- disfranchisement
- disfranchiser
- disfrock
- disgorge
- disgorgement
- disgrace
- disgraceful
- disgracefully
- disgracefulness
- disgracer
- disgruntle
- disgruntlement
- disguise