Searching for Maundy Thursday
The first time I heard the term "Maundy Thursday," I wondered how the same day could be both a Monday and a Thursday. Back then, I didn't have Accordance, so I had to rely on the explanation of a friend. Unfortunately, while she was able to explain that Maundy Thurdsay commemorates the original observance of the Lord's Supper, she had no idea where the term "Maundy" came from.
These days when I run across a religious observance I've never heard of, I'll just fire up Accordance and do a Search All for it. A search of all my tools for Maundy Thursday delivered the following results.
I then began looking at those tools which actually had an Entry on Maundy Thursday. Eerdmann's Bible Dictionary and Zondervan's New International Dictionary of the Christian Church (NIDCC) both had very helpful explanations.
Exploring further, I found interesting mentions of Maundy Thursday in some of my commentaries. For example, Expositor's Bible Commentary (EBC) notes a possible allusion to David's flight from Absalom in the Gospel accounts of Maundy Thursday.
For topical kinds of questions like this, the Search All window provides an easy path to discovery.