Grossly underused words

Couple of my favs...

Peripatetic. Means 'of, or relating to, the philosophy or teaching methods of Aristotle.' Dunno why I like it, may have something to do with those two plosive p's in the middle, along with fairly equally-spaced consonants...

Plenitude, meaning, 'the state of being full'. Apparently the author Tolkien quite liked the word pleni*l*une, meaning 'at the time of the full moon', which is probably what made me stumble across *plenitude* in the dictionary. Again, not really sure why, but I note it's chock full of juicy consonants. Hmm, maybe I should do a scientific study of my lexical aesthetic preferences someda...ah, but I digress...

Ran into obnubilate the other day cruising the deepest dankest corners of Usenet. Just a freakin' cool word. Means, basically, 'obscure'. And obscure it is, it wasn't even in my thick Webster's. Note that I found it in its adjectival form, with the stress on the 2nd syllable, obnubilate, but it also has a verbal form, obnubilate.

In the above mentioned post, I also found such lexical monstrosities as 'adoxography', 'witzelsucht', 'sanguivorous', 'deoppilate', 'malacissitate', 'obmutescence', 'jookeries', and 'hippopotomonstrosesquipedalian'. Good words all...but, for some reason, only 'obmutescence' really resonates with me.

Penultimately, if I may be allowed to 'toot my own (proverbial) horn', in my younger years I was a frequent competitor in spelling contests, getting as high as the precursor to the National Finals (I am a resident of the USA). My family and I used to try and trip each other up with various words, a favorite being 'antidisestablishmentarianism'.

Finally, for the people who like 'ersatz', my dad recently went back to grad school and used that word in one of his most recent essays (he's trying to get teaching certification). His prof commented 'Good word!'

Jam it back in, in the dark.