Latin/ˈlætn/ Definition 1 of 4Pro Tip 1/3Historical Language Latin was the official language of Ancient Rome and influences many modern terms. Many scientific terms are derived from Latin. Pro Tip 2/3Scholastic Usage Latin is studied for historical, linguistic, and cultural education. Latin phrases are often used in academic works. Pro Tip 3/3Language Roots Understanding Latin can help grasp the roots of English vocabulary. The Latin word 'aqua' means water, influencing English words like 'aquarium'.