This Greek–English Lexicon is a standard lexicographical work of the ancient Greek edited by Henry George Liddell and Robert Scott and published in 1843 by the Oxford University Press. It was later revised by Henry Stuart Jones. It was based on the earlier Handwörterbuch der griechischen Sprache by the German lexicographer Franz Passow (first published in 1819, fourth edition 1831), which in turn was based on Johann Gottlob Schneider’s Kritisches griechisch-deutsches Handwörterbuch. The Lexicon has served as the basis for all later lexicographical work on the ancient Greek language and is now in its ninth revised edition (first published in 1940).
It is now available free online: Henry George Liddell, Robert Scott, A Greek-English Lexicon, λόγος