I was looking over a website about unusual and rarely words and I found a few that I really liked. I think my favorite is the second one.

Phrontistery fron'tis-te-ree, n (Greek phrontisterion, from phrontistes a thinker, from phroneein to think)
A thinking-place; a place for study. I simply had to include 'phrontistery' on this list. It was first used by Aristophanes to apply to the school of Socrates, and was somewhat mocking in tone. A peculiar (and under-used) term, I hope to reclaim it for thinking people everywhere. No other term is synonymous, and its intellectual if pompous sound merely adds to its charm.

Growlery growl'er-ee, n (English; cf. Dutch grollen, to grumble)
A retreat for times of ill humour. This term has largely become obsolete, which is strange, given that so many people seem to have a place to go when they are in a bad mood - a place to be alone and think. It's similar in meaning to the Latin-derived sanctum sanctorum, with the added connotation that the individual in question is going to the place to be alone while upset.

Kenspeckle ken'spek-l, adj (Scottish English, from Old Norse kennispeki power of recognition)
Easily recognizable or distinguishable; conspicuous. This word sounds very interesting, and is all the more remarkable because it is etymologically unrelated to the similar-sounding and synonymous conspicuous (Latin con, an intensive, and specere, to look). Kenspeckle is mostly used in Scotland and northern England these days; perhaps it should enjoy greater currency.

Mumpsimus mump'si-mes, n (A blunder for Latin sumpsimus, we have received)
A view stubbornly held even when shown to be wrong; one holding such a view. In an old story, it's said that an ignorant priest, knowing the sound of the Latin Mass but not speaking the language, said the meaningless 'mumpsimus' instead of 'sumpsimus'. When corrected, he is said to have replied, "I will not change my old mumpsimus for your new sumpsimus". This learned joke has lasted five centuries in the form of this fine-sounding word.

Do you know any strange words?