Correct spelling for the English word "panis" is [pˈaniz], [pˈaniz], [p_ˈa_n_i_z] (IPA phonetic alphabet).
The word "panis" comes from Latin. It ultimately traces back to the Proto-Indo-European root *pa- or *peh₂-, which meant "to feed" or "to graze". In Latin, "panis" directly translates to "bread" or "loaf", referring specifically to the staple food made from ground grains.