To abnegate is to give up or deny oneself something, particularly a pleasure. It can also mean to renounce or reject something, such as a right or belief. I'm no abnegator; I believe I shall enjoy eating the rest of this cake as much as I enjoyed the first slice. (I grated the zest of the lemon and the whole has smells of citrus freshness)
Cake goes well with birthdays, don't you think? That makes this poetry competition relevant. Don't deny yourself the pleasure that winning the $100 prize could bring.
My entry is here.