ر ف ر فr-f-r-f
(quadriliteral, rubāʿī) رَفْرَفَ يُرَفْرِفُ رَفْرَفَةًrafrafa yurafrifu rafrafatan: (of a bird) to flap its wings; the lexicographers give the basic sense as hanging down and fluttering.
رَفْرَفrafraf: cushions, bolsters, or the fine cloth hung along the edges; the exegetes differ: green cushions, the borders of gardens, or fringed drapes. Only once in the Quran: ﴿مُتَّكِـِٕيْنَ عَلٰى رَفْرَفٍ خُضْرٍ﴾ (Ar-Raḥmān 55:76)