(n.) One who investigates the derivation of words.
Example Sentences:
(1) Eagle-eyed etymologists, however, noted that none of the words in the Liberalnaya Demokraticheskaya Partiya are of Slavic origin, so publishing the name of the party proposing the law could be enough to receive a fine.
(2) In the first study of its kind in 90 years, Columbia University etymologists trapped 133 common New York rats , also known as the Norway rat, to examine bugs that piggyback throughout the city.