† ˈcostable,a.Obs. [a. OF.coustable (later coûtable), f.couster to cost.] Costly, expensive. c1460J. Russell Bk. Nurture 803 Capon, Bakemete, or Custade Costable.1502Ord. Crysten Men (W. de W. 1506) iv. xxv. 311 That the faste be not to moche costable to bere.