day’s dawning n.also day’s a-dawning[rhy. sl.]morning.Show quotations1960J. Franklyn Dict. of Rhy. Sl. 1969S.T. Kendall Up the Frog. 1981P. Wright Cockney Dialect and Sl. 98: Days a -dawnin’ ‘morning’. 1992R. Puxley Cockney Rabbit.