köken: From Middle High German bedecken, from Old High German bidecken, bidekken, bithecken, from Proto-West Germanic *biþakkjan, equivalent to be- + decken.
köken: Usually explained as an early Turkic borrowing (< Proto-Turkic *köbüŕ). Compare Slovak and Czech koberec, Polish kobierzec, archaic Bulgarian губер (guber). Mikkola, quoted by Vasmer and Karl Brugmann, derives the Russian word from Old Norse kǫgurr (“quilt”). This derivation is difficult for phonetic and semantic reasons and fails to explain the Czech and Bulgarian cognates. Unrelated to English…
aile: ковёрный, подковёрный, замести́ под ковёр, замета́ть под ковёр, ковёр-самолёт, ковро́вая бомбардиро́вка, кра́сная ковро́вая доро́жка, ковро́вая доро́жка