Such a person is a specialist in language history, or a linguistic historian.
The science of language study is called linguistics. Linguists analyze the structure, history, and use of languages to understand how they work and evolve.
From my experiences a defensive specialist is usually called a Labero. (La-bear-o)
History's name came from the English words of "His story" since history is stories from the past.
ASCII
Distinguished throughout history, the the proud and noble given name "Alfi" derives from the Old English language word "aelf", meaning "elf", and "raed", meaning "counsel"; hence, "diplomatic and wise counselor, elf counsel". The Teutonic language ascribes the meaning of "supernaturally wise" to the given name "Alfi".
The female given name 'Karla' originates with the Greek & Old German languages.
history studies
It is a male given name in Pakistan...
sinologist
Machine Language (Vaccum Tube)
Consisently gathering renown throughout recorded human history, the masculine given name "Ellis" has variations in many languages, but is originally derived from the Hebrew language, carrying the meaning of "the Lord is my God, Jehovah is my God".
I know this sounds too simple, but after taking a java course in highschool and being taught its history (programming is great but history...torture), anyway, the java language was originally going to be called OAK, but its creators realized that that name was already taken, so after getting a cup of coffee, they knew the name. I got this information from a textbook not a teacher or internet site, so it IS reliable. Good luck programming