† ˈblockwood Obs. name of logwood. 1581Act 23 Eliz. ix. §1 Stuff called Logwood, alias Blockwood.1619Dalton Countrey Just. xviii. (1630) 48 Concerning the using of Logwood alias blockwood in dying.1667Lond.Gaz.No. 133/4 Two small Vessels, one..of 40. Tuns, with Block-wood and Iron.