נחמיה ה:יד פירוש: רש״י

that he commanded me i.e., the king.

governor Heb. פֶּחָם, like פֶּחָה, ruler, after the pattern of רֵיקָם, empty, like רֵֵֵיקָה.

from the twentieth year of King Darius, for then he ascended from Babylon, as it is stated (2:1): “Now it came to pass in the month of Nissan in the twentieth year, etc.”