ROGET'S THESAURUS OF ENGLISH WORDS AND PHRASES ...

94. [Division into three parts.] Trisection -- N. trisection, tripartition † , trichotomy; third,
third part.
V. trisect, divide into three parts.
Adj. trifid; trisected &c v.; tripartite, trichotomous † , trisulcate † .
Triadelphous † , triangular, tricuspid, tricapsular † , tridental † , tridentate, tridentiferous † ,
trifoliate, trifurcate, trigonal † , trigrammic † , trigrammatic † , tripetalous † , tripodal, tripodic † ,
triquetral † , triquetrous † .
95. Four -- N. quaternity † , four, tetrad, quartet, quaternion, square, quarter.
[planar form with four sides] tetract † , tetragon, quadrangle, rectangle.
[three dimensional object with four surfaces] tetrahedron.
quadrature, quadrifoil, quadriform, quadruplet; quatrefoil.
[object or animal with four legs] tetrapod.
[geographical area with four sides] quadrangle, quad [Coll.].
[electromagnetic object] quadrupole.
[four fundamental studies] quadrivium.
V. reduce to a square, square.
Adj. four; quaternary, quaternal † ; quadratic; quartile; tetract † , tetractic † , tetractinal † ;
tetrad, tetragonal; square, quadrate.
96. Quadruplication -- N. quadruplication.
V. multiply by four, quadruplicate, biquadrate † .
Adj. fourfold, four times; quadrable † , quadrumanous † , quadruple, quadruplicate,
quadrible † ; fourth.
quadrifoliate † , quadrifoliolate † , quadrigeminal † , quadrigeminate † , quadriplanar † ,
quadriserial † .
Adv. four times; in the fourth place, fourthly.
97. [Division into four parts.] Quadrisection -- N. quadrisection, quadripartition † ;
quartering &c v.; fourth; quart; quarter, quartern † ; farthing † , fourthing; quadrant.
V. quarter, divide into four parts.
Adj. quartered &c v.; quadrifid † , quadripartite.
rectangular.
98. Five &c -- N. five, cinque [Fr.], quint, quincux † ; six, half-a-dozen, half dozen; seven;
eight; nine, three times three; dicker; ten, decade; eleven; twelve, dozen; thirteen; long
dozen, baker's dozen; quintuplet; twenty, score; twenty-four, four and twenty, two dozen;
twenty-five, five and twenty, quarter of a hundred; forty, two score; fifty, half a hundred;
sixty, three score; seventy, three score and ten; eighty, four score; ninety, fourscore and
ten; sestiad † .
hundred, centenary, hecatomb, century; hundredweight, cwt.; one hundred and fortyfour,
gross.
thousand, chiliad; millennium, thousand years, grand [Coll.]; myriad; ten thousand,
ban [Jap.], man [Jap.]; ten thousand years, banzai [Jap.]; lac, one hundred thousand,
plum; million; thousand million, milliard, billion, trillion &c
V. centuriate † ; quintuplicate.