Why is the ninth month called September?
"to put together," late 14c., compounen "to mix, combine," from Old French compondre, componre "arrange, direct," from Latin componere "to put together" (see composite). The -d appeared 1500s in English on model of expound, etc. Related: Compounded; compounding.
1670s, via Dutch (kampoeng) or Portuguese, from Malay kampong "village, group of buildings." Spelling influenced by compound (v.). Originally, "the enclosure for a factory or settlement of Europeans in the East," later used of South African diamond miners' camps (1893), then of large fenced-in spaces generally (1946).
"a compound thing," mid-15c., from compound (adj.).
late 14c., originally compouned, past participle of compounen (see compound (v.)). Compound eye is attested from 1836; compound sentence is from 1772.
compound com·pound (kŏm'pound')
A combination of two or more elements or parts.
A pure, macroscopically homogeneous substance that consists of atoms or ions of different elements in definite proportions that cannot be separated by physical means, and that have properties unlike those of its constituent elements.
To combine so as to form a whole; mix.
To produce or create by combining two or more ingredients or parts.
A substance consisting of atoms or ions of two or more different elements in definite proportions joined by chemical bonds into a molecule. The elements cannot be separated by physical means. Water, for example, is a compound having two hydrogen atoms and one oxygen atom per molecule.
Adjective Composed of more than one part, as a compound eye or leaf.
any substance composed of identical molecules consisting of atoms of two or more chemical elements.