a (S) Availing, efficacious, of unfailing potency or virtue--medicines, charms, skill, weapons. 2 Productive, fruitful. 3 (Ignorantly.) Unavailing or unproductive.
a (S) Availing, efficacious, of unfailing potency or virtue--medicines, charms, skill, weapons. 2 Productive, fruitful. 3 (Ignorantly.) Unavailing or unproductive.