For a long time, I've kept a list of words I haven't seen before, along with their definition, etymology, and the context in which I first read them. Every now and then, I'll post a word from the list.
Want of concinnity, congruousness, or proportion; inelegance, awkwardness; impropriety, unsuitableness. (OED)
Etymology: < Latin inconcinnitās inelegance, impropriety, < inconcinnus
"The edges of the space are the edges of the things you love, whose inconcinnities make your mind move."—Anne Carson, Eros the Bittersweet