He was late last Thursday. We went on Thursday and returned on Saturday.
Word History
Etymology
Middle English, from Old English thursdæg, from Old Norse thōrsdagr; akin to Old English thunresdæg Thursday, Old Norse Thōrr Thor, Old English thunor thunder — more at thunder entry 1
First Known Use
before the 12th century, in the meaning defined above
Time Traveler
The first known use of Thursday was before the 12th century