What is the origin of the name Mjölnir in Norse mythology?
Historical linguists have debated the root of the term Mjöllnir for decades without reaching a single conclusion. One proposed derivation connects the name to Old Church Slavonic mlunuji and Russian molnija which mean lightning suggesting the hammer was originally named as a lightning-maker or a weapon that creates thunder. Another theory links the word to Old Norse mjöll meaning new snow and modern Icelandic mjalli meaning the color white under this interpretation the name translates to shining lightning weapon.