syringa

[suh-ring-guh] /səˈrɪŋ gə/
noun
1.
mock orange (def 1).
2.
any shrub or tree of the genus Syringa, including the lilacs.
Origin
1655-65; < Neo-Latin < Greek sȳring- (stem of sŷrinx syrinx) + Neo-Latin -a -a2; name first given to mock orange, the stems of which were used in pipe-making
British Dictionary definitions for syringa

syringa

/sɪˈrɪŋɡə/
noun
1.
another name for mock orange, lilac (sense 1)
Word Origin
C17: from New Latin, from Greek surinx tube, alluding to the use of its hollow stems for pipes