oxy-, -oxia, -oxic
(Greek: sharp, acute, pointed, keen; sour, acid, acidic, pungent)
oxygon
Having acute angles; acute-angled.
oxyhemoglobin
A familiar protein is the one in red blood corpuscles that combines with oxygen in the lungs and carries it to the cells of the tissues, where it gives it up again. When it combines with oxygen, it becomes oxyhemoglobin.
oxyhemoglobinometer
An apparatus for measurement of the amount of oxygen in the blood.
oxyhydrocephalus
A type of hydrocephalus in which the head has a pointed shape.
oxyhydrogen
Consisting of a mixture of oxygen and hydrogen.
oxylalia
Fast speech, usually excessively fast.
oxylophilous, oxylophile, oxylophily
In biology, dwelling and thriving in humus or humus-rich habitats.
oxylophyte, oxylophytic
A plant growing in a humus-rich habitat.
oxyluminescence
Luminescence caused by oxidation.
oxymel
A medicinal drink or syrup compounded of vinegar and honey, sometimes with other ingredients.
oxymora (pl)
Sharp, keen plus foolish, dull; "pointedly foolish" pronounced [ahk" si MOHR uh].
Sometimes when the word "oxymoron" is used, someone will exclaim, "Good grief! What is an oxymoron? Is it a dumb bovine?" No, far from it.
An oxymoron is a figure of speech in which two incongruous, contradictory terms are yoked together in a small space. In fact, "good grief" is an oxymoron.
Even the word oxymoron is itself oxymoronic because it is formed from two Greek roots of opposite meanings: oxys, "sharp, keen", and moros, "dull, foolish", the same root that gives us the word moron.
Should oxymoronic strings, like the double-play “fresh frozen jumbo shrimp”, be accorded special mention? What about triple plays in which all three words interact; such as, “permanent guest host”?
While the forms that oxymora assume are far from infinite, they are intriguingly varied. The boundaries separating one category from another blur and shift even as we draw them, but the lines can be useful. As all taxonomists should know, it is not always easy to know where the front of a horse ends and the back begins, but we usually can perceive the difference between a horse's head and a horse's rear end.
—Source Lederer, Richard. “Oxymoronology.” Word Ways, Vol. 23, No. 2; May 1990, pp. 102-105.
You may find extensive lists of oxymora at this link.
oxymoron (s)
Sharp, keen plus foolish, dull; pronounced [ahk" si MOH rahn], from Greek, oxy-, “point, sharp” and moron, “foolish”]. A rhetorical figure by which contradictory or incongruous terms are conjoined so as to give point to the statement or expression; an expression, in its superficial or literal meaning self-contradictory or absurd, but involving a point.
A well-known example of literary oxymora is Tennyson's "Lancelot and Elaine":
The shackles of an old love straiten'd him
His honour rooted in dishonour stood,
and faith unfaithful kept him falsely true.
oxymoronic
Suggestive of oxymoron; incongruous, self-contradictory.
oxyntic
Producing or secreting acid; used primarily in reference to the parietal cells of the stomach.
oxyopia, oxyblepsia
Abnormal acuteness, or sharpness, of sight.
Cross references of word families that are related directly, or indirectly, to: "sour, sharp":
acerb-;
aceto-;
acid-;
acies- (not "sour");
acuto- (not "sour");
pung- (not "sour").
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