frost Copy link Outline 1. gĕlu, ūs, n. (also used concr. for ice2. gĕlātio (a frost3. gĕlĭcĭdium (= preced.4. pruīna • frost: 1. gĕlu, ūs, n. (also used concr. for ice: q. v.): to be frozen up with the keen f., acuto g. consistere, Hor. Od. 1, 9, 4: the forms gelus and gelum also occur: ne gelus noceat, Cato, R. R. 40, extr.; venenum enim gelum radicibus tenellis, Varr. R. R. 1, 45; but not in the best writers. 2. gĕlātio (a frost: rare): a severe f., magna g., Plin. 17, 27, 37 § 233. 3. gĕlĭcĭdium (= preced.: a term freq. in the writers on husbandry): to be assailed by f.s, gelicidiis [pruinisve] infestari, Col. 2, 8, med.: (a bough) exposed to f., ad gelicidium retectus, Varr. R. R. 1, 55, init.: Cato. 4. pruīna: v. hoar-frost. Sometimes frigus (frigora) may be precise enough, esp. poet.: cf. Ov. Fast. 1, 149, etc.: v. cold.