[a. F. contre-murer, It. contramurare (16th c.), f. the sb.: see prec.]
a. trans. To fortify or defend with a countermure. b. intr. To raise a countermure.
c. 1594. Kyd, Sp. Trag., III. in Hazl., Dodsley, V. 91. Where, countermur’d with walls of diamond, I find the place impregnable.
1627–47. Feltham, Resolves (ed. 7), 329. The falling of a house is more perillous than the rising of a flood … [in] the latter … there being time either to avoid the place, or to countermure.
1665. Sir T. Herbert, Trav. (1677), 189. A running trench … countermur’d with a thick wall of stone.
