Gāol1, n.
(jāl), n. [O. Fr. gaole, gaiole, jaiole, Norm. Fr. geaule, geole, N. Fr. geôle, Pg. gaiola, Sp. gayola, jaula, It. gabbriuola, L. Lat. gajola, gabiola, Lat. as if caveola, diminutive of cavea, cavity, cage, q. v.] A place of confinement or safe keeping of persons legally committed to it for crime, or of persons committed for trial or for failure to recognize in criminal cases, or for contempt of court, and of others in the legal custody of the sheriff or other officer of the law; a prison. Bouvier. Burrill.
Written also, and preferably, jail.