*ululate \UL-yuh-layt; YOOL-\ (intransitive verb) –
To howl, as a dog or a wolf; to wail; as, ululating jackals.
"The other women thronged to her. They began to ululate again, rolling their tongues so that their spittle flew as they emitted that terrible keening sound." — Wilbur Smith, ‘The Triumph of the Sun’
Ululate derives from Latin ululare, to howl, to yell, ultimately of imitative origin. The noun form is ululation; the adjective form is ululant.
unique \yu-NEEK\ (adjective) – Sole, one of a kind, without equal or match.
"Going out with Mary Ellen to the county sausage-eating contest was an almost unique experience in my life."
Today’s word comes to us, as so many others, from Latin "unicus" via Old French. The underlying root is oi-no- from which English "one" is derived and the reason the article "a" sometimes has an [n] in it (an apple), is that it was originally "one" before all nouns. The Latin variant un-us "one" appears in "union," "unite," "unit," "unanimous," "unicorn," and "universe." People often complain about the (mis)use of this word in the comparative (more unique, most unique). Many dictionaries claim that this reflects a new meaning of the word: "rare, unusual." In fact, the confusion is produced by a peculiarity of the comparative degree of adjectives with a fixed, absolute sense like "unique." Comparison is allowed with these adjectives but the meaning is "more nearly X" ("more nearly unique") and not simply "more X." Notice this is what "more infinite," "more absent," even "fuller" mean. "Fuller" doesn’t mean "more than full" but "more nearly full." So, "unique" has not taken on a new meaning; the comparative has, offering a different interpretation for absolute adjectives.
urbane \ur-BAYN\ (adjective) – Polished and smooth in manner; polite, refined, and elegant.
"My voice was dry, interested, but in an academic sort of way. It was the voice I’d cultivated at court. I had learned to watch the most awful things and make dry, urbane comments." — Laurell K. Hamilton, ‘A Kiss of Shadows’
Urbane comes from Latin urbanus, "of a city," hence "refined, polished," from urbs, "city." The noun form is urbanity.
uxorious \uk-SOR-ee-us; ug-ZOR-\ (adjective) – Excessively fond of or submissive to a wife.
"Flagler seems to have been an uxorious, domestic man, who liked the comfort and companionship of a wife at his side." — Michael Browning, ‘Whitehall at 100’
Uxorious is from Latin uxorius, from uxor, wife.