OALD has begun to provide some origins since its 6^th edition, and the number of which amounts to 231 ones in the 8^th edition. This act of adding origins to learner’s dictionary represents the new lexicographic trend outside China, and one of which is that 88% of these origins are characterized by the nature of lexical motivation and therefore they belong to motivational information (MI) as well. Hence, basing on the lexical motivation studies and especially on the interrelation among origin (etymon), motivation and lexicography, the paper describes the distribution of over 200 MIs, then discusses their implications for the lexical motivation research, and finally investigates the application of these MIs into the fields such as English vocabulary learning and the lexical translation between English and Chinese. It is found that the inclusion of etymons tagged with the meta-lingual word “origin” in the 8^th edition of Oxford Advanced Learner’s English-Chinese Dictionary (OALECD) is of significance at least in three senses. First, the contents of learner’s dictionary are expanding, which transcends the stereotype of not containing origins, and so it initiates the model of “learner’s dictionary + origin”. Secondly, the overlapping of origins and motivations not only facilitates the interdisciplinary integration of lexicography and foreign language teaching, etc., but also incidentally consolidates the data basis and pragmatical value of the lexical motivation study. Lastly, “learner’s dictionary + origin” precurses the lexicographic paradigm of “learner’s dictionary + MI” which may develop or even mature in the future.