Equi-

repr. L. æqui-, combining form of æquus equal, prefixed originally to words of Latin origin, as equiangular, but occasionally to those from other sources, as equi-balance. The majority of the words so formed are adjectives; these are chiefly parasynthetic derivatives f. sbs. after the analogy of the simple adjs.; in other instances the prefix has the advb. sense ‘equally, in an equal degree.’ Less frequently the prefix forms verbs and substantives.

  Equianharmonic a. (see quot.) Hence Equianharmonically adv. Equiarticulate a., having equal joints with another. Equibalance sb. = EQUILIBRIUM. † Equibalance v. Obs., to counterpoise, to constitute an equivalent to. Equibiradiate a., having two equal rays. Equichangeable a., equally varying. Equicheapness, Obs. the quality of being equally cheap. Equiconvex a., having two convex surfaces presenting equal curves. Equicrescent a., increasing by equal amounts, having equal increments. † Equicurve a. Obs., having an equal curve to (some other line). Equidiagonal a., having the diagonals equal. Equidiurnal a. nonce-wd., transl. Gr. ἰσημερινός (see quot.). † Equidivision, Obs., equal division. † Equidurable a. Obs., equally durable. Equiexcellency, the being equally excellent. Equigraphic a. (see quot.). Equilobate a., equally lobate, having equal lobes. † Equilucent a. Obs., shining with equal or even light. Equimomental a. Physics, having equal moments of inertia about parallel axes. † Equinecessary a. Obs., needful in an equal degree. † Equinumerally adv. Obs., in equal, i.e., corresponding, numbers or feet. † Equinumerant a. Obs., having the same number, consisting of the same number. Equiomnipotent a. Obs., equally all-powerful. Equipensate v. Obs., to weigh equally; to esteem alike. Equiperiodic a., having equal periods. Equiprobabilism, the doctrine of the equiprobabilists. Equiprobabilist (see quot.). Equiproducing a., equally producing; producing an equal amount or crop. Equiradial a., having equal radii. Equiradical a., ‘equally radical’ (W.). Equisegmental a. Math., having equal segments. Equisized a., equally sized, of equal size. † Equisufficiency nonce-wd., the being equally sufficient. Equitangential a., having a tangent equal to a constant line; said of a certain curve. † Equitemporaneous a. Obs., performed in equal lengths of time. † Equivaliant a. Obs., equally valiant; of sufficient prowess. Equivalue v. trans. (a.) to value equally, put on a par; (b.) to equal in value. Equivalved a. Conch. (see quot.). † Equivelocity. Obs., equality in velocity. Equivote, the event of an equal number of votes having been given on either side.

1885.  Leudesdorf, Cremona’s Proj. Geom., 55. If two ranges, each of four points, are projective, they … are *equianharmonic.

1853.  Dana, Crust., II. 1131. The accessory branch is but little the shorter, nearly *equi-articulate.

1841.  Blackw. Mag., XLIX. 372. The sphere of Coreggio … exemplified the attempt to create an *equi-balance of the great elements of the constitution of man.

1665.  Manley, Grotius’ Low-C. Warrs, 915. Help him either with 500 Foot, or so many Ships, as should *equiballance that Number.

1675.  J. Smith, Chr. Relig. Appeal, 55 (L.). In Mahomet … the passions of Amorousness and Ambition were almost equiballanced.

a. 1678.  Woodhead, Holy Living (1688), 110. Equiballancing to the other.

1800.  Sir W. Herschel, in Phil. Trans., XC. 536. The proportional elevations which a set of *equi-changeable thermometers would experience.

1817.  H. T. Colebrooke, Algebra, 58. *Equidiagonal tetragons.

1612.  Sturtevant, Metallica (1854), 85. Equi-sufficiencie, *Equi-cheapness, Equi-excellency [are the lesser vertues of a deriuative Inuention].

1857.  B. Price, Infinitesimal Calculus, I. 89. This variable … I have ventured to call *Equicrescent.

1726.  trans. Gregory’s Astron., I. I. 47. The Proportions … agree … to this Curve, to which the Circle is *equicurve.

1762.  trans. Busching’s Syst. Geog., I. Pref. 39. The radius of a circle æquicurve to the meridian.

1858.  Whewell, Novum Org. Renovatum, 262 (L.). The circle which the sun describes in his diurnal motion, when the days and nights are equal, the Greeks called the *equidiurnal.

1633.  Ames, Agst. Cerem., II. 174. That doeth not hinder a superdivision, or *æquidivision, into common and speciall.

1686.  Goad, Celest. Bodies, II. viii. 256. To ascribe a durable Constitution, or State of Air, to an *Equi-durable mover.

1612.  [see quot. for equicheapness] *Equiexcellency.

1866.  Proctor, Handbk. Stars, 22. The homolographic (or, as I prefer to call it, the *equigraphic) projection of maps: that is of the construction of maps in which all areas shall be correctly given.

1872.  H. A. Nicholson, Palæont., 325. Ganoids with heterocercal *equilobate tails.

1608.  Sylvester, Du Bartas, 767. Bee ’t Cloudy, cleer, Eclipse, or night, or day, His lovely browes are *equilucent ay.

1881.  J. Larmor, in Nature, XXIV. 605/1. The well-known property of *equi-momental ellipses.

1663.  Butler, Hud., I. III. 115.

1640.  J. Gower (title), Ovids Festivalls, or Romane Calendar, Translated into English verse *equinumerally.

1727.  Arbuthnot, Coins, 35 (J.). This Talent of Gold, tho’ not *equinumerant … nor yet equiponderant … as to any other; yet was equivalent … to some correspondent Talent in Brass.

1797.  J. Lawrence, in Monthly Mag. (1818), XLVI. 214. That even abstract power appears to be limited by *equiomnipotent absurdity.

1692–1732.  Coles, *Equipensate, weigh or esteem alike.

1882.  Minchin, Unipl. Kinemat., 10. Superposed *Equiperiodic Rectilinear Vibrations.

1817.  H. T. Colebrooke, Algebra, 74. Also in an *equi-perpendicular tetragon … to find the area.

1888.  Dublin Rev., Jan., 219. The contest between probabilism and *æquiprobabilism has not been touched at all.

1882.  Littledale, in Encycl. Brit., XIV. 636/1 s.v. Liguori, *Equiprobabilists, who teach that in a balance of opinion the less safe opinion may be lawfully followed, provided it be as probable, or nearly as probable, as its opposite.

1846.  Grote, Greece, II. vi. II. 537. Something approaching to *equi-producing lots for all.

1817.  Coleridge, Biog. Lit., I. 266. If we affirm of a circle that it is *equi-radial.

1889.  Evening Post, 25 Jan., 1/4. The lady’s bicycle, which is built … with *equi-sized wheels.

1612.  [see quot. for equicheapness] *Equi-sufficiency.

1715.  De Moivre, in Phil. Trans., XXIX. 334. The Curve A C B may … be call’d the *Equitangential Curve.

1871.  Olney, Geom., xiii. 172. The … Equitangential Curve is generated by the motion of a weight [etc.].

1709.  F. Hauksbee, Phys.-Mech. Exper., v. (1719), 197–8. Galileo’s famous Proposition, about the *Equitemporaneous Descents of heavy Bodies in the Chords of a Circle.

1579.  J. Stubbes, Gaping Gulf, D ij b. The daughter … shal haue much adoe to find *equiualiant champions.

1803.  W. Taylor, in Robberds, Mem., I. 470. He has the fault of all our antiquaries, to *equivalue the noble and the rabble of authorities.

1865.  F. Hall, in Reader, 14 Jan., 43/1. Anything adequate mounts up to; whereas that which is adequative simply equivalues.

1836.  Todd, Cycl. Anat., I. 711. In a considerable number of species the two valves are alike, when the shell is said to be *equivalved.

1662.  Stillingfl., Orig. Sacr., III. ii. § 16. 459. The *æqui-velocity of the motion of all Atoms of what size so ever, which he likewise asserted.

1745.  Revised Charter Yale Coll., in Catal. Yale Univ. (1886), 20. Where an *Equivote happens, the President shall have a casting Vote.

1888.  A. P. Foster, in Advance (Chicago), 1 March, 132. In an equi-vote the question shall determine on that side on which the presiding member shall have voted.