Altarlet

For of how small dimensions the altar of Santiago formerly was, lest we should be supposed to diminish it in our relation, may better be collected from the measure of the altarlet itself.

Source: wiktionary

The canons say that an altar should be of stone ; altare debet esse lapideum, If the altar is not wholly of stone, but of wood for example, it suffices that there be an altarlet (altariolus) of stone or a lapis sacratus, holy stone, in it.

Source: wiktionary

Beyond the lance stands an altarlet, upon which is erected a twofold cornucopia containing " plenty," represented by three (?) apples.

Source: wiktionary