purullu, parullu, perullu, purallu - an official (CAD B 344, AHw 142)

First, the word has been connected (Lewy 1938, 139, n. 5, Bilgiç 1954, 75, Haas 1977, 81) to the Hittite name of the festival purulli (CHD 391). The second suggestion (Richter 2004, 264 f., n. 7) is to compare it to Hurrian pur(ul)li “temple” (GLH 206, BGH 329). Both comparisons are based on a clear-cut phonetic similarity, while the obvious semantic difference is left unexplained (that the functions of the purullu-official were connected with the purulli-festival, as suggested in Haas 1977, 81, is merely an etymological guess). As an alternative, a comparison with Hurr. furullinni/prln “diviner” (BGH 327, 536) can be surmised, in spite of the functional difference between the two types of personnel.