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Octa- :: Octa- () A prefix meaning eight. See Octo-.

Counter :: Counter (adv.) A prefix meaning contrary, opposite, in opposition; as, counteract, counterbalance, countercheck. See Counter, adv. & a..

Chloro- :: Chloro- () A prefix denoting that chlorine is an ingredient in the substance named.

Prepositive :: Prepositive (a.) Put before; prefixed; as, a prepositive particle..

Enter- :: Enter- () A prefix signifying between, among, part..

Negative :: Negative (n.) A proposition by which something is denied or forbidden; a conception or term formed by prefixing the negative particle to one which is positive; an opposite or contradictory term or conception.

What :: What (pron., a., & adv.) Sometimes prefixed to adjectives in an adverbial sense, as nearly equivalent to how; as, what happy boys!.

Nitroso- :: Nitroso- () (/ / /). (Chem.) A prefix (also used adjectively) designating the group or radical NO, called the nitroso group, or its compounds..

Ge- :: Ge- () An Anglo-Saxon prefix. See Y-.

Compare :: Compare (v. t.) To inflect according to the degrees of comparison; to state positive, comparative, and superlative forms of; as, most adjectives of one syllable are compared by affixing - er and -est to the positive form; as, black, blacker, blackest; those of more than one syllable are usually compared by prefixing more and most, or less and least, to the positive; as, beautiful, more beautiful, most beautiful..

Proto- :: Proto- () Sometimes used as equivalent to mono-, as indicating that the compound has but one atom of the element to the name of which it is prefixed. Also used adjectively..

Mal- :: Mal- () A prefix in composition denoting ill,or evil, F. male, adv., fr. malus, bad, ill. In some words it has the form male-, as in malediction, malevolent. See Malice..

Childe :: Childe (n.) A cognomen formerly prefixed to his name by the oldest son, until he succeeded to his ancestral titles, or was knighted; as, Childe Roland..

Apo :: Apo () A prefix from a Greek preposition. It usually signifies from, away from, off, or asunder, separate; as, in apocope (a cutting off), apostate, apostle (one sent away), apocarpous..

Trans- :: Trans- () A prefix, signifying over, beyond, through and through, on the other side, as in transalpine, beyond the Alps; transform, to form through and through, that is, anew, transfigure..

Super :: Super- () A prefix formerly much used to denote that the ingredient to the name of which it was prefixed was present in a large, or unusually large, proportion as compared with the other ingredients; as in calcium superphosphate. It has been superseded by per-, bi-, di-, acid, etc. (as peroxide, bicarbonate, disulphide, and acid sulphate), which retain the old meanings of super-, but with sharper definition. Cf. Acid, a., Bi-, Di-, and Per-..

Ante- :: Ante- () A Latin preposition and prefix; akin to Gr. 'anti`, Skr. anti, Goth. and-, anda- (only in comp.), AS. and-, ond-, (only in comp.: cf. Answer, Along), G. ant-, ent- (in comp.). The Latin ante is generally used in the sense of before, in regard to position, order, or time, and the Gr. 'anti` in that of opposite, or in the place of..

Proto- :: Proto- () A combining form prefix signifying first, primary, primordial; as, protomartyr, the first martyr; protomorphic, primitive in form; protoplast, a primordial organism; prototype, protozoan..

Un- :: Un- (adv.) Un- is prefixed to adjectives, or to words used adjectively..

A- :: A- () A, as a prefix to English words, is derived from various sources. (1) It frequently signifies on or in (from an, a forms of AS. on), denoting a state, as in afoot, on foot, abed, amiss, asleep, aground, aloft, away (AS. onweg), and analogically, ablaze, atremble, etc. (2) AS. of off, from, as in adown (AS. ofd/ne off the dun or hill). (3) AS. a- (Goth. us-, ur-, Ger. er-), usually giving an intensive force, and sometimes the sense of away, on, back, as in arise, abide, ago. (4) Old English

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