clove 1 
(klōv)
(klōv)n.
1. An evergreen tree (Syzygium aromaticum) native to the Moluccas and widely cultivated as a source of oil and for its aromatic dried flower buds.
2. A flower bud of this plant, used whole or ground as a spice.
[Middle English, from Old French clou (de girofle), nail (of the clove tree), from Latin clāvus, nail.]