Correct spelling for the English word "hyperpietic" is [hˌa͡ɪpəpˈa͡ɪ͡ətɪk], [hˌaɪpəpˈaɪətɪk], [h_ˌaɪ_p_ə_p_ˈaɪə_t_ɪ_k] (IPA phonetic alphabet).
Relating to or marked by extremely high blood pressure.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.