Definition of historiology in English:
historiology
noun hɪˌstɒrɪˈɒlədʒiˌhɪstɒrɪˈɒlədʒihɪˌstɔːrɪˈɒlədʒi
The narration or study of history.
Origin
Late 16th century; earliest use found in Philip Sidney (1554–1586), author and courtier. From post-classical Latin historiologia from historio- + -logia.