Correct spelling for the English word "benefacts" is [bˈɛnɪfˌakts], [bˈɛnɪfˌakts], [b_ˈɛ_n_ɪ_f_ˌa_k_t_s] (IPA phonetic alphabet).
The word "benefacts" does not have an established etymology. It appears to be a recently coined term that combines elements of the words "benefits" and "facts". As such, it can be understood as referring to factual information that is beneficial or advantageous in some way. However, it is worth noting that this word is not commonly used or recognized, and its meaning may vary depending on context.