Etymology of the Greek word emerologion
the Greek word emerologion
derived from the Greek word logos, λόγος (word, speech, topic, treatise, reasoning)
derived from the Greek word hemera, ἡμέρα (a day; the time space between dawn and dark, or the whole 24 hours (but several days were usually reckoned by the Jews as inclusive of the parts of both extremes); figuratively, a period (always defined more or less clearly by the context))
