C. F. Keil and Franz Delitzsch on Ezra 4:8

Ezr 4:8

The writers of the letter are designated by titles which show them to have been among the higher functionaries of Artachshasta. Rehum is called טעם בּעל, dominus consilii v. decreti, by others consiliarius, royal counsellor, probably the title of the Persian civil governor (erroneously taken for a proper name in lxx, Syr., Arab.); Shimshai, ספרא, the Hebrew סופר, scribe, secretary. כּנמא is interpreted by Rashi and Aben Ezra by כּאשׁר נאמר, as we shall say; נמא is in the Talmud frequently an abbreviation of נאמר or נימר, of like signification with לאמר: as follows.