faillí, f. (gs. ~, pl. ~ocha). Neglect, negligence; delay, omission. ~ a dhéanamh, a thabhairt, i rud, to neglect sth. ~ a ligean i rud, to let sth. be neglected. Le ~, through neglect; by omission. Níor leis ab fhaillí é, he did not let the opportunity pass. Ní tráth ~ é, there is no time for delay.