From Merriam-Webster's Word of the Day e-mail service:
lexicographer \lek-suh-KAH-gruh-fer\ nounAs it's Dictionary Day, I'll mention that my most memorable dictionary experience has been looking up the word tappen in the Oxford English Dictionary. Edwin Cuffe, SJ, a funny and wonderful man, suggested that I look it up. I later learned that he pointed countless students to the joys of the OED via this word.
: an author or editor of a dictionary
The great lexicographer Noah Webster, who wrote the first authoritative dictionary of American English, was born on October 16, 1758.
Did you know?
Happy Dictionary Day! We're celebrating with a look at a word that is dear to our hearts: "lexicographer." The ancient Greeks were some of the earliest makers of dictionaries; they used them mainly to catalog obsolete terms from their rich literary past. To create a word for writers of dictionaries, the Greeks sensibly attached the suffix "-graphos," meaning "writer," to "lexikon," meaning "dictionary," to form "lexikographos," the direct ancestor of the English "lexicographer." "Lexikon," which itself descends from the Greek "lexis" (meaning "word" or "speech"), also gave us "lexicon," which can mean either "dictionary" or "the vocabulary of a language, speaker, or subject."
As I type, I realize that I work within easy reach of at least a dozen dictionaries, including the old Book-of-the-Month-Club two-volume OED.