Meaning of hello. Who made the word hello.
Its current popularization as "HELLO" meaning "greetings" especially used to start phone converations coincided with the rising use of the telephone in the late 1800's. Alexander Graham Bell had actually favored "Ahoy" instead of "hello." Ahoy normally has its association with calling out upon sailing ships, boats, ferries and all other types of sea vessels. The ancestral origin of the word "hello", in all likelihood, does as well.
The word hello has its origins (according to the Online Etymology Dictionary) in Continental/European usage with the most logical and historic connection at least as early as 1400 to the German "hala/hola" which is the imperative of "hollen" which means to fetch". It was used to get the attention of people far away on a ferry boat by those who wanted to hitch a ride by yelling out to the ferryman "HALLO!" (fetch me over here!).
For OED references, see: http://www.etymonline.com/index.php?term=hello
and for Collins German translation of "fetch": http://www.collinsdictionary.com/dictionary/english-german/fetch?
where you will find
According to Merriam Webster: hello- an expression or gesture of greeting —used interjectionally in greeting, in answering the telephone, or to express surprise