S / sustentācŭlum
noun

sustentācŭlum

gen. sustentācŭli · gender neuter · decl. 2nd
a prop; stay; support
a prop, stay, support.
Lit. (post-Aug. and very rare): sustentaculum, columen, Tac. H. 2, 28.—
sustenance; nourishment by extension
Transf., sustenance, nourishment: sustentaculum sumptuosum corporis, Aug. Mor. Eccl. Cath. 33.