gemmo, āvi, ātum, 1, v. n. and a. [gemma]. (Acc. to gemma, I.) To put forth buds, to bud or gem: id fit antequam gemmare Aut florere quid incipit, Varr. R. R. 1, 40, 4; Col. 4, 27, 1: gemmare vites, luxuriem esse in herbis, laetas segetes etiam rustici dicunt, Cic. de Or. 3, 38, 155; id. Or. 24, 81 (cf.: necessitate rustici gemmam in vitibus dicunt, Quint. 8, 6, 6); v. gemma init.

—In the part. pres.: gemmantem oculum caecare, Col. 4, 24, 16: vinea, Plin. 17, 22, 35, § 188: sarmenta, Pall. Febr. 32: surculi rosarum, id. Nov. 11; for which in the part. perf.: melius proveniet, si ponendus ramus gemmata jam matre sumatur, Pall. Mart. 10, 2.

— (Acc. to gemma, II.; poet. and in post-Aug. prose). Neutr., to be adorned with precious stones, to sparkle with gems. Lit. (only in the part. pres.): gemmantia sceptra, Ov. M. 3, 264: gemmantia litora, Manil. 4, 652.

— Transf., to glitter, sparkle, like gems: herbae gemmantes rore recenti, Lucr. 2, 319; 5, 461: gemmantes explicat alas (pavo), Mart. 13, 70; cf.: pinnae caudae (pavonis), Col. 8, 11, 8; Pall. 1, 28, 2 (see also gemma, II. 2. c. and gemmeus, II. B.): memphites (lapis) gemmantis naturae, Plin. 36, 7, 11, § 56.