syringa/sɪˈɹɪŋ.ɡə/EtymologyFrom Dutch or Middle Low German from Latin sȳrinx from Ancient Greek σῦριγξ (sûrinx, “pan pipes”).nounSweet mock orange (Philadelphus coronarius).Any of the several flowering plants of the genus Philadelphus, such as now in the Western United States Philadelphus lewisii.Any of the several flowering plants, of the genus Syringa, such as the lilacs.