I was recently thinking of that beautiful word of Edgar Allan Poe's--"tintinnabulation." I tried saying it aloud to myself as if I were the English actor, Simon Callow. (He who was The Reverend Mr. Beebe in A Room With a View. And the one funeral in Four Weddings and a Funeral.) I pictured him saying it slowly, precisely, beautifully -- tin-tin-na-bu-la (and then taking his time over the last syllable) -shhun. Being precise with the "shh" sound. Languishing over it, loving it, not rushing it.
Then, without all that much thought to it, I came up with a little collection of beautiful words that just popped into my head--words that I found exceptionally lovely ... in no particular order.
ploughman (that, after reading Edna St. Vincent Millay)
Just for fun, here's the link to Bertrand Russell's 20 favorite words.