libel

The word 'libel' entered English in the late 13th century via Anglo-French from the Latin 'libellus', a diminutive of 'liber' meaning "book." The original Latin term 'libellus' meant "a little book, pamphlet, or writing," and was used specifically for a plaintiff's written statement of charges. This legal sense traveled through Old French into English, where the meaning narrowed to focus on the defamatory content of such a writing. Over centuries, the term evolved from referring to the physical document itself to denoting the defamatory statement contained within it, and eventually to the act of publishing such a statement, solidifying its modern legal and common usage.

The word is a simplex loanword from Latin. It cannot be meaningfully segmented into productive morphemes in modern English spelling without resorting to etymological roots not present in its current form.