Pronunciation: [hˌa͡ɪdɹə͡ʊlɪktɹˈɪsɪtiz] (IPA) 
Correct spelling for the English word "hydroelectricities" is [hˌa͡ɪdɹə͡ʊlɪktɹˈɪsɪtiz], [hˌaɪdɹəʊlɪktɹˈɪsɪtiz], [h_ˌaɪ_d_ɹ_əʊ_l_ɪ_k_t_ɹ_ˈɪ_s_ɪ_t_i_z] (IPA phonetic alphabet).
The word "hydroelectricities" does not have an established etymology as it is not a widely recognized or commonly used term. However, if we break down the word into its components:
1. "Hydro-" refers to water or related to water, derived from the Greek word "hydor" (ὕδωρ).
2. "-Electricities" is a suffix that denotes the state or quality of being electric or electricity.
Combining these two components, "hydroelectricities" could be interpreted as referring to the state or quality of being electric, specifically generated from or related to water.
It is important to note that "hydroelectricities" is not a standard term used in the English language. The usual term to refer to electricity generated from water is "hydroelectric power" or "hydroelectricity".
