[Thurs.day] n [ME, fr. OE thursdaeg, fr. ON thorsdagr; akin to OE thunresdaeg Thursday, ON Thorr Thor, OE thunor thunder--more at thunder] (bef. 12c): the fifth day of the week -- Thurs.days adv
THURSDAY
Meaning of THURSDAY in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012