vibia
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
Latin > English (Lewis & Short)
vĭbĭa: ae, f.,
I 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.
Latin > French (Gaffiot 2016)
(1) vĭbĭa, æ, f., perche placée en travers sur une autre [appelée vara qui est debout : Aus. Idyll. 12 ; Gloss. Scal. ; v. vara.