triumvir noun. [trʌɪ'ʌmvǝ] Pl. -virs, -viri [-vɪrʌɪ, -vɪri:]. LME.
[Latin from triumviri pl., back-form. from trium virorum genit. pl. of tres viri three men.]
1. Roman History. Each of three public officers forming a committee overseeing any of the administrative departments. Also spec., each member of the first or second triumvirate (see TRIUMVIRATE noun 1). LME.

2. transf. In pl. Any group of three persons or things in a joint position of power or authority. E17.

■ triumvirship noun the position or office of triumvir L16.

■ triumviry noun = TRIUMVIRATE noun L16-M17.

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