The dog fell off a 4 story tall building and landed on all fours and lived, such a fitful occurrence (fitful:coming, appearing, acting, etc., in fits or by spells, recurring irregularly.)
A base word is a word that has a prefix or suffix added to it (e.g fix, refix, fixed.) Fix would be the base word. A root word is a word that another word comes out of. "path" is the root word that...