Base

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BASE. Something low; inferior. This word is frequently used in composition; as base court, base estate, base fee, &c.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
The trend now is to inoculate by placing pellets or granulated inoculant in the pouring cup, in the sprue, in an enlarged chamber in the sprue base or by a cored wire containing an inoculant that is fed continuously into the sprue during pouring.
This is the least desirable sprue design, but the use of a choke core at the bottom of the reverse tapered downsprue or the reduction of runner cross section next to the sprue base can partially overcome this disadvantage.
The cross-sectional area of ingates is typically 2-4 times greater than the sprue base. This enlargement makes the nonpressurized system very useful in reducing the reoxidation of sensitive alloys entering the mold.