English
libeler
From libel + -er.
A compound of libel + -er
Proto-Indo-European *lewbʰ- ‘to peel, cut off, harm’
…
Latin liber ‘book’
Latin libellus ‘petition’
Old French libelle
Middle English libel ‘a litigant's statement of complaint, or list…’
English libel
Today it means
noun One who libels.
Language periods are conventional ranges, not dates for this word.
Etymograph / libeler