It's a listing of the 100 most beautiful words in the English language.
Some I would like to highlight:
Assemblage A gathering.
Bungalow A small, cozy cottage.
Dalliance A brief love affair.
Embrocation Rubbing on a lotion.
Forbearance Withholding response to provocation.
Gossamer The finest piece of thread, a spider’s silk.
Halcyon Happy, sunny, care-free.
Imbroglio An altercation or complicated situation.
Languor Listlessness, inactivity.
Moiety One of two equal parts.
Nemesis An unconquerable archenemy.
Offing The sea between the horizon and the offshore.
Pastiche An art work combining materials from various sources.
Riparian By the bank of a stream.
Scintilla A spark or very small thing.
Woebegone Sorrowful, downcast.
These are not necessarilly new words, or very hard words ("love" is in the listing) but they are the most perfect of words.