corollary

noun

1. a practical consequence that follows naturally

   noun.event

   Examples

   Blind jealousy is a frequent corollary of passionate love.

   Source: WordNet 3.0

2. (logic) an inference that follows directly from the proof of another proposition

   noun.cognition

   Source: WordNet 3.0

3. That which is given beyond what is actually due, as a garland of flowers in addition to wages; surplus; something added or superfluous.

   noun

   Source: webster1913