from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A sentence of two or more coordinate independent clauses, often joined by a conjunction or conjunctions, as The problem was difficult, but I finally found the answer.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a sentence that has two or more independent clauses, joined by a conjunction (such as 'but', 'and') and/or punctuation (such as ','). Compare simple sentence.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a sentence composed of at least two coordinate independent clauses
Sorry, no etymologies found.
Note the rapid change of subject in the short compound sentence -- a common observation in Hebrew (K.S. 399b).