Note: Upon conveys a more distinct notion that on carries with it of something that literally or metaphorically bears or supports. It is less employed than it used to be, on having for the most part taken its place. Some expressions formed with it belong only to old style; as, upon pity they were taken away; that is, in consequence of pity: upon the rate of thirty thousand; that is, amounting to the rate: to die upon the hand; that is, by means of the hand: he had a garment upon; that is, upon himself: the time is coming fast upon; that is, upon the present time. By the omission of its object, upon acquires an adverbial sense, as in the last two examples. To assure upon (Law), to promise; to undertake. — To come upon. See under Come. — To take upon, to assume.
UP-OVER
Up"-o`ver, a. (Mining & Civil Eng.)
Defn: Designating a method of shaft excavation by drifting to a point below, and then raising instead of sinking.
UPPENT
Up*pent`, a.
Defn: A Pent up; confined. [Obs.]
UPPER
Up"per, a.; comp. of Up.
Defn: Being further up, literally or figuratively; higher in place, position, rank, dignity, or the like; superior; as, the upper lip; the upper side of a thing; the upper house of a legislature. The upper hand, the superiority; the advantage. See To have the upper hand, under Hand. Jowett (Thucyd.). — Upper Bench (Eng. Hist.), the name of the highest court of common law (formerly King's Bench) during the Commonwealth. — Upper case, the top one of a pair of compositor's cases. See the Note under 1st Case, n., 3. — Upper covert (Zoöl.), one of the coverts situated above the bases of the tail quills. — Upper deck (Naut.), the topmost deck of any vessel; the spar deck. — Upper leather, the leather for the vamps and quarters of shoes. — Upper strake (Naut.), the strake next to the deck, usually of hard wood, and heavier than the other strakes. — Upper ten thousand, or (abbreviated) Upper ten, the ten thousand, more or less, who are highest in position or wealth; the upper class; the aristocracy. [Colloq.] — Upper topsail (Naut.), the upper half of a double topsail. — Upper works (Naut.), all those parts of the hull of a vessel that are properly above water. — Upper world. (a) The atmosphere. (b) Heaven. (c) This world; the earth; — in distinction from the underworld.
UPPER
Up"per, n.
Defn: The upper leather for a shoe; a vamp.
UPPERMOST
Up"per*most`, a. Etym: [From Up, Upper; formed like aftermost. Cf.
Upmost.]