dorchadas, m. (gs. -ais).1. Darkness. Sa ~, in the dark. I n~ na hoíche, in the darkness of the night. Dul chun dorchadais, to get dark. Tá an ~ ag teacht, the darkness (of night) is coming on. Bheith sa ~, to be in the dark; to be in ignorance (faoi rud, of sth.). An rud atá ag déanamh dorchadais dó, what is confusing his senses. 2. Secrecy, reserve.