hoar-frost Copy link Outline 1. pruīna2. gĕlĭcĭdium (esp. the early h.s or frozen dew • hoar-frost: 1. pruīna: h. comes from frozen dew, pr. ex rore gelido gignitur, Plin. 2, 60, 61: Varr.: Cic. In the poets, cana is often added, Virg. G. 2, 376: Mart. When the pl. is used, it denotes continued or accumulated h.s: Cic.: Lucr.: Hor. 2. gĕlĭcĭdium (esp. the early h.s or frozen dew: only in pl.): if there are h.s when you gather the olive, si g. erunt, cum oleam coges, Cato, R. R. 65: Col. Join: pruinae et gelicidia nocturna, Col. 11, 2, ad init. Covered with h., pruinosus, Ov.: Pall.