σκῐ-άς · ski-as — LSJ
canopy, arbour, sunshade
canopy or arbour (in form like a sunshade), Eup. 445, Theoc. 15.119, Demetr.Sceps. ap. Ath. 4.141f, AP 9.488 (Trypho, pl.), Plu. Them. 16; of Dionysus (cf. σκιάδειον), Poll. 7.174, Hsch.
2 a rotunda
esp. the θόλος at Athens, IG 2(2).1013.39; ἐπὶ Σκιάδος warden of the Σ., ib. 3.1041 (ii A.D.), 1051.22 (ii/iii A.D.), etc., cf. Ammon. ap. Harp. s.v. θόλος: also, a rotunda at Sparta in which the assemblies of the people were held, Paus. 3.12.10.
II umbel
umbel of plants, Phanias ap. Ath. 9.371d (σκίλλα cj. Wilamowitz).
III
= ἀναδενδράς, Hsch.