The study of the origin and history of a word is known as its etymology, a term which, like many of our technical words, comes to us through Latin, but has its origins in Greek (e´tymon “original form” + logia “study of”), and is not to be confused with entomology, also from Greek (e´ntomon “insect”). When we look closely at the etymologies of less technical words, we soon discover that there are many different ways in which new words can enter the language. We should keep in mind that these processes have been at work in the language for some time and a lot of words in daily use today were, at one time, considered barbaric misuses of the language. It is difficult now to understand the views expressed in the early nineteenth century over the “tasteless innovation” of a word like handbook, or the horror expressed by a London newspaper in 1909 over the use of the newly coined word aviation. Yet many new words can cause similar outcries as they come into use today. Rather than act as if the language is being debased, we might prefer to view the constant evolution of new words and new uses of old words as a reassuring sign of vitality and creativeness in the way a language is shaped by the needs of its users.