Where does “tuesday” come from?
tuesday (English) comes from Middle English Tewesday, from Old English tīwesdæġ, from Proto-Germanic *Tīwas dag, from Latin dīēs Martis, from Latin diēs, from Proto-Italic djēm, from Proto-Italic *djous, from Proto-Indo-European dyḗws — to be bright; sky, heaven.
Ancestry of “tuesday”, step by step