折磨 or 折騰?

来源: 走马读人 于 2013-09-20 06:09:23 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (132 bytes)

Why is affix of applicant（申请人）-ant, not -er,-or?
and why is afflict 折磨 not 折騰?
My book will explain

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