Correct spelling for the English word "Arquated" is [ˈɑːkwe͡ɪtɪd], [ˈɑːkweɪtɪd], [ˈɑː_k_w_eɪ_t_ɪ_d] (IPA phonetic alphabet).
There doesn't seem to be a widely recognized term called "Arquated" in English. It is possible that it might be a misspelling or a less common word.