Our native tongue has sometimes been criticized as vulgar or ridiculous, and while I happen to agree, on principle, that Italian and Spanish are generally more charitable to the ear, I must say that there are many English words (which we rarely use) that are quite charming:
Assemblage A gathering.
Beleaguer To exhaust with attacks.
Bucolic In a lovely rural setting.
Bungalow A small, cozy cottage.
Demure Shy and reserved.
Dulcet Sweet, sugary.
Ebullience Bubbling enthusiasm.
Efflorescence Flowering, blooming.
Eloquence Beauty and persuasion in speech.
Embrocation Rubbing on a lotion.
Epiphany A sudden revelation.
Erstwhile At one time, for a time.
Ethereal Gaseous, invisible but detectable.
Gambol To skip or leap about joyfully.
Gossamer The finest piece of thread, a spider's silk
Halcyon Happy, sunny, care-free.
Imbroglio An altercation or complicated situation.
Imbue To infuse, instill.
Ingénue A naïve young woman.
Inglenook A cozy nook by the hearth.
Lagniappe A special kind of gift.
Lagoon A small gulf or inlet.
Languor Listlessness, inactivity.
Lilt To move musically or lively.
Lissome Slender and graceful.
Lithe Slender and flexible.
Love Deep affection.
Mellifluous Sweet sounding.
Nemesis An unconquerable archenemy.
Offing The sea between the horizon and the offshore.
Panacea A solution for all problems
Petrichor The smell of earth after rain.
Quintessential Most essential.
Riparian By the bank of a stream.
Serendipity Finding something nice while looking for something else.
Summery Light, delicate or warm and sunny.
Sumptuous Lush, luxurious.
Talisman A good luck charm.
Untoward Unseemly, inappropriate.