Thursday: before 950; Middle English; Old English Thursdæg < Old Danish ThÅ«rsdagr literally, Thor's day. In Norse mythology, Thor (/θÉ”r/; from Old Norse Þórr) is a hammer-wielding god associated with thunder, lightning, storms, oak trees, strength, the protection of mankind, and also hallowing, healing and fertility. The cognate deity in wider Germanic mythology and paganism was known in Old English as Þunor and in Old High German as Donar (runic þonar ᚦᛟᚾᚨᚱ), stemming from a Common Germanic *Þunraz (meaning "thunder"). (This match starts on 02 March)