[f. Vincent (see def.) + -IAN.] Originating or associated with St. Vincent of Lerins (died c. 450 A.D.].
The reference is to St. Vincent’s test of orthodoxy: ‘quod ubique, quod semper, quod ab omnibus creditum est.’
1875. Liddon, in Johnston, Life & Lett. (1904), vii. 200. Your difficulty seems to be in the meaning of ‘Semper’ in the Vincentian Canon.
1887. Ld. Acton, Lett. Mary Gladstone (1913), 182. No consensus, no Vincentian Rule, exists that can decide this question.
