Autumnal
Pronunciation : Au*tum"nal
Part of Speech : a.
Etymology : [L. auctumnalis, autumnalis: cf. F. automnal.]
Definition : 1. Of, belonging to, or peculiar to, autumn; as, an autumnal tint; produced or gathered in autumn; as, autumnal fruits; flowering in autumn; as, an autumnal plant. Thick as autumnal leaves that strow the brooks In Vallombrosa. Milton.
2. Past the middle of life; in the third stage. An autumnal matron. Hawthorne. Autumnal equinox, the time when the sun crosses the equator, as it proceeds southward, or when it passes the ~ point. -- ~= point, the point of the equator intersected by the ecliptic, as the sun proceeds southward; the first point of Libra. -- ~= signs, the signs Libra, Scorpio, and Sagittarius, through which the sun passes between the ~ equinox and winter solstice.
Source : Webster's Unabridged Dictionary, 1913