Abstain

• refrain from voting
• choose not to consume; "I abstain from alcohol"
• Refrain from (something); hold one's self aloof; to forbear or keep from doing, especially an indulgence of the passions or appetites; -- with from; To shun voluntarily; Deliberately refrain from casting one's vote at a meeting where one is present; Hinder; withhold
• refrain; hold oneself back voluntarily from action or practice
• the practice of denying oneself food, drink, or other pleasures. Catholics over age 14 abstain from eating meat on Ash Wednesday and on Fridays during Lent.