Correct spelling for the English word "experimentings" is [ɛkspˈɛɹɪməntɪŋz], [ɛkspˈɛɹɪməntɪŋz], [ɛ_k_s_p_ˈɛ_ɹ_ɪ_m_ə_n_t_ɪ_ŋ_z] (IPA phonetic alphabet).
The word experimentings does not have an established etymology as it is not a recognized English word. It appears to be a combination of the noun experiment and the suffix -ings, which is typically used to form nouns from verbs, indicating the action or result of the verb. However, in standard English grammar, experimentings is not grammatically correct, and the appropriate noun form for the verb to experiment would be experiments.