plank (v.) Copy link Outline 1. contăbŭlo, 1 (to cover with boards)2. coaxo (coass.) • plank (v.). 1. contăbŭlo, 1 (to cover with boards): Caes. B. G. 5, 40: Plin. 2. coaxo (coass.): Vitr. 7, 1, 5. (N.B.--Coaxo appy. only of a horizontal planking: contabulo of either horizontal or perpendicular.)