Strong's:γλυκύς sweet (i.e. not bitter nor salt)Derivation: of uncertain affinity;KJV Usage: sweet, fresh.
TBESG:γλυκύςsweetG:A γλυκύς, -εῖα, -ύ, [in LXX chiefly for מָתוֹק ;] Refs Jas.3:11, 12; opp. to πικρόν, ἁλυκόν, Refs Rev.10:9, 10.† (AS)
γλυκύς glukus gloo-koos' Of uncertain affinity; sweet (that is, not bitter nor salt)KJV Usage: sweet, fresh.
γλεῦκος gleukos glyoo'-kos Akin to G1099; sweet wine, that is, (properly) must (fresh juice), but used of the more saccharine (and therefore highly inebriating) fermented wineKJV Usage: new wine.