[L.]
1. An associate or colleague.
1701. in Cath. Rec. Soc. Publ., VII. 106. We were invited to Mr. Ingram’s Defension of his Philosophie, & were presented with his & his Socius’ Thesis.
1877. J. Morris, Troubles Cath. Forefathers, 3rd Ser. 116. During this time he was Socius to Father Henry Garnet, Vice-Prefect of the English Mission.
2. A comrade, companion.
1859. Sala, Gaslight & D., xxv. 294. General friend, socius, and adviser of the artists.
