From G2184; {diurnality} that {is} (specifically) the quotidian rotation or class of the Jewish priests´ service at the {Temple} as distributed by families: - course.
From G1909 and G2250; for a day ({ephemeral}) that {is} diurnal: - daily.
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Luk 1:5¶ There was in the days of Herod, the king of Judaea, a certain priest named Zacharias, of the courseG2183 of Abia: and his wife was of the daughters of Aaron, and her name was Elisabeth.