(something) netted, a quilt, fly net, pillow

Root √כבר: כבר כָּבַר כְּבָרָה to intertwine, net sift (√ of foll.; ?; NHis denom. fr.).

כָּבִיר n.[m.] netted fly-net prob. something, i.e. either a quilt or aspread over the face while a person was asleep