TAD A4.7R.2 :ולרחמן ישימנך קדם דריוהוש מלכא‏ : may he (the god) put you in good stead before King Darius
See the entire entry for swm vb. to place, put

TAD A4.7R.2 :שלם מראן אלה שמיא ישאל שגיא בכל עדן ולרחמן ישימנך קדם דריוהוש מלכא‏ : may the God of Heaven be greatly concerned for my lord's wellbeing at all times and grant you favorable status before king Darius
See the entire entry for raḥmīn, raḥmayyā/ē n.m.pl.t mercy; prayer