翌～
よく～ · yoku～ · JLPT N2 · noun
next ~
羽 (wings) + 立 (stand) = wings standing ready for the next day
翌日 yokujitsu = next day, 翌朝 yokuasa = next morning, 翌週 yokushuu = next week. Use 翌 before a time unit to mean the next one after the current or stated point.