What Does Safari Mean?
Safari is a Web browser developed by Apple, Inc., and is the default browser of the operating systems used in its product lines such as OS X for the Mac and MacBook computers and iOS for the iPhone and iPad mobile devices. Safari was originally developed for OS X and was released as a public beta on January 7, 2003, with a major update in Safari 4 released in February 2009.
Techopedia Explains Safari
Safari was originally developed for Mac OS but has since been ported to iOS and Windows. The Windows version of Safari was first released on June 11, 2007, for Windows XP SP2. As for the iOS version of Safari, it is somewhat different than the OS X version because it uses a different graphical user interface (GUI), Webkit version and API.
Safari is a Cocoa application on OS X and uses WebKit for rendering. WebKit itself consists of WebCore and JavaScriptCore, which are both free software released under the GNU GPL, thus making Safari free software also. Apple also releases the code under a BSD-like open-source 2-clause license.