I noticed this kabbalistic holy name "דיקרנוסא" mentioned in the Amidah of a Edot haMizrach siddur in the extra supplications, and apparently it is not allowed to be pronounced. It sounds like it is Latin or Spanish in origin, maybe I'm mistaken. What is the meaning/origin of דיקרנוסא?
It is customary to recite Tefillat HaParnasah, a prayer for sustenance, at the end of each prayer service during the High Holidays. In many Sephardic machzorim, a supposed “name of God” is invoked—though not recited aloud—during this prayer (it is also found in the parnasah insert during the Amidah of many Sephardic weekday siddurim). That “name” is Dikarnosa (דיקרנוסא), which apparently comes from Malachi 3:10, though it is difficult to see how other than the appearance of the word די in the verse. Others link it to a fusion of Malachi 3:10 and the word nasah in Psalms 4:7, נסה עלינו אור פניך ה׳.
NOTE: It seems as if it's not a Malachs name, but rather one of G-Ds names.