The average English speaker knows 50,000 words in contemporary use - 25 more words than there are stars in the night sky visible to the naked eye. Yet stripped down to its origins, this apparently huge vocabulary is in reality a much smaller number of words from Latin, French and the Germanic languages. It is estimated that every year, 800 neologisms are added to the English language: acronyms - 'yuppie', blended words - 'motel', and those taken from foreign languages - 'savoir-faire'. The Bloomsbury Dictionary of Word Origins provides a concise history of over 8,000 of the most commonly used words. The range of information spans from derivations as simple as 'a' and 'one' from 'an', to historical relations between words which would be obscure to all but the most lexically-minded. For instance 'vice' with its several uses in English - a wickedness, a holding tool - is derived via Old French from two separate Latin words: 'vitium' (defect, offence), and 'vitis' (vine) which gave 'viticulture'. The Bloomsbury Dictionary of Word Origins demonstrates how the diverse influences on English have given rise to some unlikely but fascinating lexical relations. 'Bishop' had no ecclesiastical origins, but was in fact derived from the Greek 'episkopos', meaning 'overseer', and shares origins with 'spy'. In strict etymological terms, a 'dairy' should employ a female kneader of bread. Laid out in an A-Z format with detailed cross references, written in a style that is both authoritative and accessible, the Bloomsbury Dictionary of Word Origins is a valuable historical guide to the English language.