Here's a breakdown of the words:
* ܫܠܡܐ (shlama) - peace
* ܠܟܘܢ (l'khon) - to you (plural)
You can also say ܫܠܡܐ ܠܟ (shlama l'kh) for "peace be unto you" singular.
Note: This is the Eastern Aramaic form. In Western Aramaic, the phrase would be slightly different.