زِفٌّ

Small feathers of the ostrich, (S, K,) and (S, in the K “ or ”) of a bird (S, K) of any kind: (K:) or small feathers, like down, beneath the thickset feathers: (IDrd, O, TA:) according to some, only of the ostrich: (O, TA:) [plural, apparently, زِفَافٌ: see زَفَازِفُ.] One says أَلْيَنُ مِنْ زِفِّ النَّعَامِ [More soft than the small feathers of the ostrich]. (TA.)