ratiocinor

rătĭōcĭnor, ātus, 1, v. dep. n. and a. [ratio] (rare, but good prose).

I.

Lit., to reckon, compute, calculate: in summo apud illos (sc. Graecos) honore geometria fuit: itaque nihil mathematicis illustrius;

at nos metiendi ratiocinandique utilitate hujus artis terminavimus modum,

Cic. Tusc. 1, 2, 5:

de pecuniā ratiocinari,

id. Inv. 2, 39, 115; 2, 32, 125; Vitr. 10, 15.—

II.

Transf.

A.

To consider, deliberate, meditate:

quo pacto cum illis occipiam, id ratiocinor,

Plaut. Stich. 1, 2, 18:

socii profecto ratiocinati essent quid possent facere, si quidem suā sponte facerent,

Auct. Her. 4, 11, 16.—

B.

To reason, argue, to infer or conclude from a consideration of circumstances:

id ex partibus juris sumi oportebit et ratiocinari, quid in similibus rebus fieri soleat, et videre, utrum, etc.,

Cic. Inv. 2, 20, 61; cf. Auct. Her. 2, 23, 35; Quint. 7, 1, 61:

etenim sic ratiocinabantur... aperte jam ac perspicue nulla esse judicia, etc.,

Cic. Verr. 1, 7, 20; cf. id. Mil. 12, 32; id. Phil. 2, 22, 55.—Rarely with acc.:

mores atque parsimoniam alicujus,

App. M. 1, p. 113, 5.