Sometimes classicists are interested in finding instances of particular words or phrases in ancient literature... but it would take a while to read through all the texts. Here are a selection of databases and tools to help search through texts to find the words you're looking for.
Aims at documenting the various tools that were used in the Middle Ages for the study of Aristotle, with a special emphasis on Latin translations. Includes Greco-Latin translations in the printed Aristoteles Latinus series and also in some unpublished editions in preparation. Also includes the corpus of Latin translations of Greek commentaries and glosses on Aristotle (most of them published in the Corpus Latinum Commentariorum in Aristotelem Graecorum), texts that were closely associated with the Corpus Aristotelicum (such as the Liber sex principiorum, the Paraphrasis Themistiana or the Vita Aristotelis), and some translations from the Arabic (the Analytica Posteriora, tr. Gerardi and Averroes’Poetria, tr. Hermanni).