Why is it called compost?

The English Word 'compost' is known to trace back to the Old French Word 'composte', for compound. The Word refers to the mix of materials that's needed to fertilize soil. Composting traces even further back to the time of the ancient Romans. For Marcus Porcius Cato ka the Elder [234 B.C.-149 B.C.] drew upon his extensive farming background to write 'De Agricultura', which means 'About Farming'. Among the topics that Cato covered was composting.