Lewis Short
partĭcĭpātus (noun M) : participo
* A sharing, participation, partnership (post-class.), Spart. Sev. 8 fin.: ad participatum imperii Severum vocans,id. Pesc. 5: filio Diadumeno in participatum ascito,Capitol. Macr. 5; Mart. Cap. 1, § 20.
Charlton T. Lewis, Charles Short, A Latin Dictionary