This paper explores the unexplained character related to the names of the four winds in oracle bone script. Scholars didn't pay attention to the issues about the names of four winds until Hu Hou-Xuan published ”A study of the names of the four winds in oracle bone script” in the fortnightly journal Zeshan in 1941. This work presented some important views and amazed sinological circles. Later, scholars worked hard at this subject and even correctly explained seven characters out of eight which mean the four cardinal directions and four winds in oracle bone script. The eighth one, written A, A', or A” in bronze script, has been explicated by numerous scholars as being the name of the north wind.The undersigned believes that the pronunciation of the name of the north wind which previous scholars defined as liè (冽) (indicating cold wind) is correct. However, the studies of the character are incomplete in evolution and semantic analysis. For example, the peculiar composition of the character wasn't mentioned-it looks like a man wielding a club to strike somebody to death on his head. In Shuowen, the two characters lì (盭) and lì (戾) are once used as the name of the north wind. Xu Xuan explains lì (盭) as ”strike a criminal until blood appears”, and Duan Yucai explains that ”Today lì (戾) is the current form instead of the obsolete character lì (盭).” The name of the north wind is still preserved in Shan Hai jing as yǎn (剡), which an examination of characters B, C, and D from the Warring States period, all constructed on yán (炎), shows that their variants and phonetic loans are always related to characters lì (厲) and liè (冽). Therefore, A, the name of the north wind in oracle bone script, which appears as E in western Zhou bronze script, means dìng (定)or zhì (致) before it was replaced by the character lì (戾). Furthermore, word senses related to the name of the north wind have been replaced by its phonetic loan character lì (厲).