[1] The Suda gives the correct etymology of the name. The Greek etymology given is a(giasmo/s. This exact etymology is found in Greek fragments edited by Lagarde (p. 174, line 89) and Wutz (p. 716, line 81). Other variations exist, which derive meaning from the first two consonants, kad. In his entry on Kadesh, Eusebius, Onomasticon (Klostermann, p. 114, line 8), does not give an etymology but merely mentions that its king was captured by Joshua and that it became part of the tribe of Judah. In the entry for Barnea (Greek *ba/rnh; beta 118), Barnea is identified with Kadesh Barnea (p. 233, line 74). In the entries for Arama and Garara, Kadesh is used as a point of reference for city locations (p. 214, line 56 and p. 240, line 32-34, respectively).
[2] A quotation from Psalm 28:8 LXX (= Hebrew 29:8). Taking the genitive case of Kadesh as objective, perhaps the Suda is offering the reader a devotional warning that the Lord will shake up any place devoid of holiness. If so, we may offer an alternative translation: "And 'The Lord will shake up that region desolate of holiness.'"