The lexical study of the Ugaritic and Canaanite languages offers one of the most reliable criteria for determining the origins and the meanings of the words. It ('nables us to determine whether a given lexeme is of Ugaritic, Canaanite, or of other Semitic origins on the one hand, while making a significant contribution to (he etymology and lexicon of Canaanite on the other. A comparative lexical and etymological study of Ugaritic lexemes (entries, words or items) and their counterparts in the Canaanite languages can also improve the understanding of (hose languages and the linguistic relationship between them. This comparison is possible due to the material available from Ugaritic and Canaanite, in which relatively rich entries can be found, and to the fact that both share a common ancestor.