"Be loyal to what matters" or "may I stand unshaken" in Dovahzul

Hi everyone, I want to get a tattoo with one of these phrases from Red Dead Redemption 2, but in Thu'um/Dovahzul.

The phrases are: "May I stand unshaken" and "Be loyal to what matters", but when I translate them in your "original" translator just can't translate the words "unshaken", "what" and "matters", I just could translate then in Legacy Translator, but I don't know if works.

By the way, in legacy translator  "what = fos"; "matters = trun"; "unshaken = hasn't translation".

Thanks in advance and I'll be waiting.

Category: Translation