quincunx

You may notice that I've totally abandoned love week. Flicking through the dictionary to find new words is one thing, narrowing them down to just one topic starts has haystack analogies. Still, this is an interesting one - didn't know there was a word for this:

quincunx n an arrangement of five things at the corners and centre of a square (eg as seen on cards and dice), or of a great number of things (esp trees) spaced in the same way; an aspect of 150 degrees between two heavenly bodeis (astrol). [Origin from Latin quincunx, from quinque five, and uncia a twelfth part]

and also an adjective to go with it:

quincuncial adj of or in a quincunx; (of aestivation) having two leaves overlapping at each edge, two underlapping at each edge, and one overlapping and underlapping (bot)

Will try and keep an eye out for some quincunxes later. Oh, also, aestivation means "a manner of folding in the flower bud". Another new word for me there.