n.
Pronunciation: ' o ̇ -t ə m
Function: noun
Etymology: Middle English autumpne, from Latin autumnus
Date: 14th century
1 : the season between summer and winter comprising in the northern hemisphere usually the months of September, October, and November or as reckoned astronomically extending from the September equinox to the December solstice ― called also fall
2 : a period of maturity or incipient decline <in the autumn of life>
– au · tum · nal \ o ̇ - ' t ə m-n ə l \ adjective
– au · tum · nal · ly \ -n ə -l ē \ adverb