english: Hebdomad [from Greek hebdomas a group of seven] A group of seven, a septenary; a period of seven days, or seven years, etc., as in Sabbatical periods.
non_english: Tha Di-Sathairne mar [[Sàbaid]] dhannan [[IùdhachIùdhachd|IùdhaichIùdhach]] agus Seventh Day Adventists.