Which famous dictionary brand name derives from a word meaning 'to teach' or 'teacher' in its original language?

Dictionaries are essential tools in the world of language and linguistics, but how well do you know the stories behind their brand names? Many of these reference products have fascinating etymological origins that connect directly to their purpose or founders. Test your knowledge about the linguistic roots behind one of the world's most recognized dictionary brands in this product trivia challenge!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Merriam-Webster (named after founders George and Charles Merriam, and Noah Webster)
Oxford (named after Oxford University where it was developed)
Longman (named after publisher Thomas Longman)
Thesaurus (from Greek 'thēsauros' meaning 'treasury' or 'storehouse')