I am using a dictionary of Syriac, which is close in meaning to Arabic. I could be mistaken. The letters around Magen David spell טפטף י-ה - make noise Hashem (plea), clatter, do not be silent. I.e. outside of the grave (symbolized by Magen David) frighten the demons.
Inside the grave:
באב - entrance/gate (for father is incorrect).
קבוֹל כסן - accept (with gratitude) the covered (likely several people)
כסאן כסאבן - distingushhonor/distingush them like old people (or a gift (sent in honor) at the time of their old age)