- matutinal (adj.) 1650s, from L. matutinalis "pertaining to morning," from matutinus "of or pertaining to the morning," from Matuta, name of the Roman goddess of dawn, related to maturus вЂњearlyвЂќ (see MATURE (Cf. mature) (v.)). Earlier in same sense was matutine (mid-15c.). Related: Matutinally.
Etymology dictionary. 2014.