出典:Wiktionary
A variant of matutinal (possibly influenced by French matin (“morning”)), which is borrowed from Middle French matutinal (modern French matutinal), and from its etymon Late Latin mātūtīnālis (“(adjective) belonging to the morning; of or pertaining to matins; (noun) morning hymn or psalm; book of lauds”), from Latin mātūtīnus (“of, occurring in, または pertaining to the early morning, matutine”) (from Mātūta (“Roman goddess of the dawn または morning”) (from Proto-Indo-European *meh₂- (“to mature, ripen; opportune, timely; good, great”)) + -īnus (suffix meaning ‘of または pertaining to’) + -ālis (suffix forming adjectives of relationship).[1][2]
matitudinal (not comparable)