It's Merriam-Webster's Word of the Day for May 23rd.
Today's word is panoply, spelled P-A-N-O-P-L-Y.
Panoply is a noun.
It's a formal word that refers to a group or collection that is impressive either because of its size or
because it includes so many different kinds of people or things.
Here's the word used in a sentence from Knowing What We Know by Simon Winchester.
Given that all of us in our daily lives are constantly confronted by a limitless confusion of knowledge,
one can say that all of us are being educated all the while,
and that education is in its essence the business of any transmission of knowledge from one party to another.
No part of this vast panoply of knowledge diffusion is more important for the future of human society than that which passes in one direction,
downward across the generations, from the older members of a society to the younger.
Despite having Greek origins and similar sounds,
the word panoply is not related etymologically or semantically to the word monopoly.
Its history has more to do with Mediterranean warfare than Mediterranean Avenue.
Panoply comes from the Greek word panoplia,
which referred to the full suit of armor worn by hoplites,
heavily armed infantry soldiers of ancient Greece.
Panoplia is a blend of the prefix pan, pan, meaning all, and hopla, meaning arms or armor.
As you may have guessed, hopla is also an ancestor of the word hoplite.
Panoply entered English in the early 17th century with its Greek use intact.