/therrz"day, -dee/ , n.
the fifth day of the week, following Wednesday. Abbr.: Th., Thur., Thurs.
[ bef. 950; ME; OE Thursdaeg Thursdagr lit., Thor's day; r. OE Thunres daeg; c. D donderdag, G Donnerstag (all repr. Gmc trans. of LL dies Jovis ). See THOR, THUNDER, DAY ]