V / vĭbĭa
noun hapax

vĭbĭa

gen. vĭbiae · gender feminine · decl. 1st
a plank; cross-piece
a plank, cross-piece supported on trestles (varae) so as to form a bank; hence the proverb: sequitur varam vibia, one error follows another, Aus. Idyll. 12 praef. monos.; v. vara.