While many words enter English as slang, not all do. Some words are adopted from other languages; some are mixtures of existing words (portmanteau words), and some are new creations made of roots from dead languages: e.g. thanatopsis. No matter the origin, though, words rarely, if ever, are immediately accepted into the English language. This book discusses the influence on English from languages such as Celtic, French, Latin, Greek, Scandanavian, Norman, Dutch and Spanish among others.