Lewis Short
compendĭum (noun N) : compendo, orig. belonging to the lang. of econ.
* That whichis weighed together, kept together, saved (cf. Varr. L. L. 5, § 183 Müll.; Paul. ex Fest. p. 72, 10 Müll.); a saving or gain, profit acquired by saving (opp. dispendium; class. in prose and poetry).
* Prop.: ego hodie compendi feci binos panes in dies,have saved two loaves,Plaut. Pers. 4, 3, 2; cf. id. Truc. 2, 4, 26: aliquem mercibus suppeditandis cum quaestu compendioque dimittere,Cic. Verr. 2, 2, 3, § 6; 2, 3, 46, § 109: turpe compendium effugere,id. Fl. 3, 7: se negat facturum compendii sui causā quod non liceat,id. Off. 3, 15, 63: homines ad turpe compendium commovere,Auct. Her. 4, 40, 52: servire privato compendio suo,Caes. B. C. 3, 32; id. B. G. 7, 43; Liv. 8, 36, 10; Plin. 21, 12, 41, § 70; Suet. Tib. 48: compendia repetere ignotis terris,Tib. 1, 3, 39 al.: ligni,Plin. 23, 7, 64, § 127; cf. operae,id. 17, 23, 35, § 214; 18, 20, 49, § 181: viae,id. 5, 5, 5, § 38.
* Esp.
* A sparing, saving in any thing done, i. e. a shortening, abbreviating: quam potes, tam verba confer maxume ad compendium,i. e. be concise, brief,Plaut. Mil. 3, 1, 184.—So of discourse, etc. (ante-class.): facere or fieri compendi, to shorten, abridge (the discourse), or to be shortened, abridged: lamentas fletus facere conpendi licet, Pac. ap. Non. p. 132, 29 (Trag. Rel. v. 175 Rib.): compendi verba multa jam faciam tibi,will be very brief with you,Plaut. Bacch. 2, 2, 7; id. Most. 1, 1, 57; id. Ps. 4, 7, 42: verbis velitationem fieri compendi volo,in few words, briefly,id. As. 2, 2, 41; cf.: sed jam fieri dictis compendium volo,id. Capt. 5, 2, 12: in ipsis statim elementis etiam brevia docendi monstrare compendia,Quint. 1, 1, 24; cf. id. 1, 1, 30; and: compendio morari,i. e. only a short time,id. 1, 4, 22.
* In the phrases
* Facere compendium, to make a profit, gain.
* In gen.: compendium edepol haud aetati optabile Fecisti, quom istanc nactu's impudentiam,Plaut. Bacch. 1, 2, 51.
* Aliquid ponere ad compendium. to save, spare something, i. e. not to say it, Plaut. Cas. 3, 1, 3; 3, 1, 5; cf.: coaddito ad compendium,id. ib. v. 4.
Charlton T. Lewis, Charles Short, A Latin Dictionary