The Collaborative International Dictionary of English v.0.48:
Cypress \Cy"press\ (s?"pr?s), n.; pl. Cypresses (-?z). [OE.
cipres, cipresse, OF. cipres, F. cypr?s, L. cupressus,
cyparissus (cf. the usual Lat. form cupressus), fr. Gr. ????,
perh. of Semitic origin; cf. Heb. g?pher, Gen. vi. 14.] (Bot)
A coniferous tree of the genus Cupressus. The species are
mostly evergreen, and have wood remarkable for its
durability.
[1913 Webster]
Note: Among the trees called cypress are the common Oriental
cypress, Cupressus sempervirens, the evergreen
American cypress, Cupressus thyoides (now called
Chamaecyparis sphaeroidea), and the deciduous
American cypress, Taxodium distichum. As having
anciently been used at funerals, and to adorn tombs,
the Oriental species is an emblem of mourning and
sadness.
[1913 Webster]
Cypress vine (Bot.), a climbing plant with red or white
flowers (Ipot[oe]a Quamoclit, formerly Quamoclit
vulgaris).
[1913 Webster]