ratiuncula

rătĭuncula, ae, f. dim. [ratio].

I.

A small reckoning, a little account:

subduxi ratiunculam, Quantum aeris mihi sit, quantumque alieni siet,

Plaut. Curc. 3, 1; id. Capt. 1, 2, 89; Ter. Phorm. 1, 1, 2.—

II.

A slight ground or reason:

leves,

Cic. Tusc. 4, 19, 43:

huic incredibili sententiae ratiunculas suggerit,

id. N. D. 3, 29, 73.—

2.

In dialectics, a petty syllogism:

concludunt ratiunculas Stoici,

Cic. Tusc. 2, 12, 29: humanis ratiunculis falsis contravenire conantur, Aug. Civ. Dei, 20, 1, 1.