Definition from Wiktionary, the free dictionary
- (rare) Characteristic of the month of September.
2004, Walter Schweppe, Sins of My Youth, page 40:
- Benumbed by the sun's Septemberly cool deceit, A bee drags its wings through the towering grass; Revived once more by a merciful breath, Westward it hastily flies.
- 1897, William Haig Miller, James Macaulay, William Stevens, The Leisure Hour, p. 548:
- She was, in appearance, a fine woman, with the rosy, Septemberly beauty which is now generally described by means of three adjectives.