| Thu. abbr. Thursday |
Thurs·day  (thûrz'dē, -dā')  n. Abbr. Thurs. or Thur. or Thu. or Th or T The fifth day of the week. [Middle English, from Old English thūres dæg, alteration (influenced by Old Norse thōrsdagr, Thor's day) of thunres dæg, Thor's day (translation of Late Latin Iovis diēs, Jupiter's day) : thunres, genitive of thunor, thunder; see (s)tenə- in Indo-European roots + dæg, day; see day.] Thurs'days adv. |
| Thu. Thursday |