1provide with the food or other substances necessary for growth, health, and good condition:I was doing everything I could to nourish and protect the baby figurativespiritual resources which nourished her in her darkest hours
enhance the fertility of (soil):a clay base nourished with plant detritus
2keep (a feeling or belief) in one’s mind, typically for a long time:he has long nourished an ambition to bring the show to Broadway