sub-tĭtŭbo

āre, v. n.
I. to stagger, totter, or waver a little (late Lat.).
I. Lit.: pede subtitubo, Ven. Vit. S. Mart. 2, 475. —
II. Trop.: subtitubante fide, Prud. Apoth. 651.
Lewis & Short
A Latin Dictionary, 1879
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