rejuvenesce

Example:As he aged, he became more nostalgic about his youth.

Definition:To grow older; to reach a later stage in one's life

Example:The once-vibrant plant rapidly withered when left without water.

Definition:To become dry and decaying; to waste away

Example:The decadent atmosphere of the city made some residents decide to leave.

Definition:Wavering between ages; passed the prime of vigor; degenerate in physical or moral condition; downward in character