Dan 6:9 :כְּדָת־מָדַי וּפָרַס‏ : according to law of Media and Persia
See the entire entry for dāṯ, dāṯā n.f./m. law

Dan 6:9 :כְּעַן מַלְכָּא תְּקִים אֱסָרָא‏ : now then the King should establish a prohibition
See the entire entry for kˁn adv. now

Dan 6:9 :תְּקִים אֱסָרָא וְתִרְשֻׁם כְּתָבָא דִּי לָא לְהַשְׁנָיָה‏ : you should establish a prohibition and write down a decree which is not to be violated
See the entire entry for šny vb. to be different