Etymology is the study of historical linguistic change, which occurs due to the development of a particular word or element of a word, often delineating its spread from one language to another and its evolving changes in form and meaning. They're explanations of what our words meant and how they sounded 600 or 2,000 years ago. The top open access journals are peer reviewed scholarly journals of Clinical Research & Bioethics. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater the insistent need of scientific community.