either an item which provides a name-source, or an item which acts as a name-recipient

An eponym is a person's name that is used to name something else. This is common in some fields of knowledge.

The mythological Greek hero Orion is the eponym of the constellation Orion, shown here.[1]


  1. "Orion Spacecraft - Nasa Orion Spacecraft". aerospaceguide.net. 15 July 2016.