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Infra :: Infra (adv.) Below; beneath; under; after; -- often used as a prefix.

Di- :: Di- () A prefix denoting through; also, between, apart, asunder, across. Before a vowel dia-becomes di-; as, diactinic; dielectric, etc..

Sesqui- :: Sesqui- () A combining form (also used adjectively) denoting that three atoms or equivalents of the substance to the name of which it is prefixed are combined with two of some other element or radical; as, sesquibromide, sesquicarbonate, sesquichloride, sesquioxide..

Inter- :: Inter- () A prefix signifying among, between, amid; as, interact, interarticular, intermit..

Un- :: Un- (adv.) Those which have acquired an opposed or contrary, instead of a merely negative, meaning; as, unfriendly, ungraceful, unpalatable, unquiet, and the like; or else an intensive sense more than a prefixed not would express; as, unending, unparalleled, undisciplined, undoubted, unsafe, and the like..

Augment :: Augment (n.) A vowel prefixed, or a lengthening of the initial vowel, to mark past time, as in Greek and Sanskrit verbs..

Tri- :: Tri- () A prefix meaning three, thrice, threefold; as in tricolored, tridentate..

Para- :: Para- () A prefix denoting: (a) Likeness, similarity, or connection, or that the substance resembles, but is distinct from, that to the name of which it is prefixed; as paraldehyde, paraconine, etc.; also, an isomeric modification. (b) Specifically: (Organ. Chem.) That two groups or radicals substituted in the benzene nucleus are opposite, or in the respective positions 1 and 4; 2 and 5; or 3 and 6, as paraxylene; paroxybenzoic acid. Cf. Ortho-, and Meta-. Also used adjectively..

Al- :: Al- (A prefix.) To; at; on; -- in OF. shortened to a-. See Ad-.

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 It has been superseded by per-, bi-, di-, acid, etc.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-..

Dys- :: Dys- () An inseparable prefix, fr. the Greek / hard, ill, and signifying ill, bad, hard, difficult, and the like; cf. the prefixes, Skr. dus-, Goth. tuz-, OHG. zur-, G. zer-, AS. to-, Icel. tor-, Ir. do-..

Intra- :: Intra- () A prefix signifying in, within, interior; as, intraocular, within the eyeball; intramarginal..

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..

To- :: To- (prep.) An obsolete intensive prefix used in the formation of compound verbs; as in to-beat, to-break, to-hew, to-rend, to-tear. See these words in the Vocabulary. See the Note on All to, or All-to, under All, adv..

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

Prepose :: Prepose (v. t.) To place or set before; to prefix.

Privative :: Privative (n.) A privative prefix or suffix. See Privative, a., 3..

Ir- :: Ir- () A form of the prefix in-. See In-.

De- :: De- () A prefix from Latin de down, from, away; as in debark, decline, decease, deduct, decamp. In words from the French it is equivalent to Latin dis-apart, away; or sometimes to de. Cf. Dis-. It is negative and opposite in derange, deform, destroy, etc. It is intensive in deprave, despoil, declare, desolate, etc..

Be- :: Be- () A prefix, originally the same word as by;.

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