What a beautifully fresh alliteration for the usual ‘wax and wane’ of the moon.
‘He saw the moon sickle and then circular.’
Source: Virginia Woolf, Orlando: A Biography, ed. with an introduction by Rachel Bowlby (Oxford: World’s Classics, 1992), p. 94
Photo credits: Miz306 and FotoArt-Treu at pixabay.com