The name Tuesday derives from the Old English and literally means "Tiw's Day". Tiw is the Old English form of the Proto-Germanic god *Tîwaz, or Týr in Old Norse. *Tîwaz derives from the Proto-Indo-European base *dei-, *deyā-, *dīdyā-, meaning 'to shine', whence comes also such words as "deity".Klein, E., "deity" and "Tuesday", Comprehensive Etymological Dictionary of the English Language (Elsevier Publishing, 1966), pp. 417—18, 1662.
the name tuesday derives from the old english and literally means "tiw's day" tiw is the old english form of the proto-germanic god *tîwaz or týr in old norse *tîwaz derives from the proto-indo-european base *dei- *deyā- *dīdyā- meaning 'to shine' whence comes also such words as "deity"klein e "deity" and "tuesday" comprehensive etymological dictionary of the english language (elsevier publishing 1966) pp 417—18 1662