일요일
iryoil · TOPIK 1
Sunday
☀️ 日曜日 = sun (일) + weekday (요일): the sun's day, just like Sun-day
일 (日) means sun or day, and 요일 (曜日) is the ending shared by all seven weekday names. So 일요일 is literally sun-weekday, the same logic as English Sunday. The final 일 is the same hanja 日 again, this time meaning day.