sustentācŭlum, i, n. [sustento], a prop, stay, support.
I Lit. (post-Aug. and very rare): sustentaculum, columen, Tac. H. 2, 28.—
II Transf., sustenance , nourishment : sustentaculum sumptuosum corporis, Aug. Mor. Eccl. Cath. 33.
sustentāculum ī, n sustento, a prop, stay, support , Ta. ...
An Elementary Latin Dictionary