Contubernal \Con*tu"ber*nal\, Contubernial \Con`tu*ber"ni*al\, a. [L. contubernalis a tent companion, fr. contubernium tent companionship.] Living or messing together; familiar; in companionship. Humble folk ben Christes friends: they ben contubernial with the Lord, thy King. --Chaucer.