1804. W. Mitford, Harmony, 91. I reckon the accentuation of a just delivery, and not the ephemerid fashion of orthography, the test of a compound word.
So † Ephemeridal.
1795. trans. Mercier, Fragm. of Politics & Hist., II. 444. These sons of fortune, these ephemeridal giants who threatened to swallow up every thing.