U is for Unthew

First off! This is not the past tense of unthaw! Secondly: There is no such word as unthaw! And that is because the reverse of thawing already has a name and that word is freeze! When someone says to you "unthaw," what they really mean is "thaw" but they're just being a nimrod.

Unthew: a bad habit; unhealthy custom. Unthewed: unruly or wanton (again, not the noodle). Unthewful: unmannerly; unseemly.

As recently mentioned, first album I ever bought (vinyl of course) as a teeny-bopper: The Monks, Bad Habits featuring hits Drugs in My Pocket and Nice Legs Shame About Her Face!

Source: New English Dictionary (1926) William Craigie
Google hits: 19,500


Unroningness: Desolation.

St. Kilda is a barren treeless island; Britain's most remote landscape, 180 Km off the west coast of Scotland. As there never was an actual St. Kilda, the name is believed a bastardization of Norse Skildir.

The first steamboats to ever reach the island threw the locals into a tizzy as they thought the ships were on fire. Upon their request, the last three dozen human inhabitants of St. Kilda were evacuated August 29, 1930 and oddly, most found mainland jobs in forestry. The local seabirds and puffins declined evacuation.

Source: Dictionary of the Oldest Words in the English Language (1863) Herbert Coleridge
Google hits: 95

Ustion: the act of burning or the state of being burnt. From Latin: ustus.

Not to be confused with Houston, where people wear big hats and think they're hot stuff and temperatures have been known to reach as high as 109°C (43°F). Director Wes Anderson and actor Patrick Swayze were born in Houston,

The Chinchaga River fire, also known as the Wisp Fire of 1950 is thought the greatest in North American history burning approximately four million acres through unpopulated British Columbia and Alberta. It created so much upper-atmosphere smoke that remnants migrated all the way to Europe where the mysterious "Great Pall" caused a sensation, its nature not initially understood.

Source: Imperial Lexicon (c. 1850) Rev. John Boag
Google hits: 71,800

Torched my dinner because it wasn't cooking fast enough.