crepuscle|krɪˈpʌs(ə)l, ˈkrɛpəs(ə)l| [mod.ad. L. crepuscul-um twilight: see below.] Twilight. 1665Phil.Trans. I. 122 The reputed Citizens of the Moon might see our Crepuscle.1860Mrs. W. P. Byrne Undercurrent I. 207 At early dawn or dusty noon, in foggy crepuscle or gloomy midnight.