a. Obs. rare. [f. L. Vertumn-us (see next); by Adams falsely associated with vēr spring, VER sb.1] a. Vernal. b. Of or pertaining to Vertumnus.
1622. T. Adams, Eirenopolis, 182. Her smiles are more reuiuing then the Vertumnall Sunneshine. Ibid. (1633), Exp. 2 Peter iii. 8. We cannot keep back the cowslip to August, nor the vertumnal flowers to autumn.
1705. N. Tate, trans. Cowleys Plants, C.s Wks. 1711, III. 405. The Goddess her Vertumnal Rites prepares.