A person who studies word origins and meanings would most likely
be an etymologist. Hence the profession he is specializing from is called
etymology. Etymology in definition is called a scientific study of words, its
history, origin, morphology, structure and meaning. Words although, change
through the course of time and by which society uses a certain phrase, word or
mantra. Hence, etymology also studies that. It may also mean that word meanings
can change because of the ascribed and due to certain occasions.