E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
A denunciation or curse. The word is Greek, and means to place, or set up, in allusion to the mythological custom of hanging in the temple of a patron god something devoted to him. Thus Gordius hung up his yoke and beam; the shipwrecked hung up their wet clothes; workmen retired from business hung up their tools, etc. Hence anything set apart for destruction; and so, set apart from the Church as under a curse.
Me tabula sacer
Votiva paries indicat uvida
Vestimenta maris deo.
Horace: Odes (v. 1316).
Horace, having escaped the love-snares of Pyrrha, hangs up his votive tablet, as one who has escaped the dangers of the sea.