THE FULL ARTICLE — from the International Standard Bible Encyclopedia

The International Standard Bible Encyclopedia (1915), general editor James Orr — public domain, printed whole.

kok'-kro-ing (alektorophonia): An indefinite hour of the night between midnight and morning (Mr 13:35), referred to by all the evangelists in their account of Peter's denial (Mt 26:34,74; Mr 14:30; Lu 22:34; Joh 13:38). It is derived from the habit of the cock to crow especially toward morning.

See COCK.