† ˈastracismObs.rare. [? from some confusion of asterisk, asterism.] An asterism or constellation; an asterisk. 1590Marlowe 2nd Pt. Tamburl. iv. iii. Above the three⁓fold astracism of heaven.1695W. Lowndes Silver Coin 6 Some have derived it [sterling] from a Star or Astracism.