- a beginner in learning anything; novice.
1611, from M.L. tyro, variant of L. tiro (pl. tirones) "young soldier, recruit, beginner," of unknown origin.
"Over the next thirty years he worked in seventeen campaigns across Europe. But he made his first important discovery while a tyro."
- Sam Kean, The Tale of the Dueling Neurosurgeons: The History of the Human Brain as Revealed by True Stories of Trauma, Madness, and Recovery