Merriam-Webster Collegiate Dictionary - participate

 verb  (-pated; -pating)  Etymology: Latin participatus, past participle of participare, from particip-, particeps participant, from part-, pars part + capere to take — more at heave  Date: 1531  transitive verb archaic partake  intransitive verb  1. to possess some of the attributes of a person, thing, or quality  2.  a. to take part always ~s in class discussions  b. to have a part or share in something  Synonyms: see share  • participator noun