Note 131 — MENSIS MARTIUS.
Reading edition
Annare perennare is to complete the circle of the year: cp. Suet. Vespas. 5 ‘puella nata non perennavit.’ Anna Perenna herself is probably a deity manufactured out of these words, and the idea they conveyed (cf. Janus Patulcius and Clusius, Carmenta Prorsa Postverta); not exactly a deity of the year, but one whom it would be desirable to propitiate at the beginning of the year.