From the same as keleb; a bird-trap (as furnished with a clap-stick or treadle to spring it); hence, a basket (as resembling a wicker cage) -- basket, cage.
see HEBREW keleb
H3619. kelub
כְּלוּב noun masculineJeremiah 5:27 basket, cage (√ dubious; Late Hebrew id., כְּלִיבָה Aramaic in Lexicons; Tel Amarna kilubi, bird-net, compare ZimZA vi. 145, 147) — absolute עוֺף כִּכְלוּבמָלֵא 5:27 like a cage full of birds; construct קַיִץ כְּלוּב Amos 8:1-2,a basket of summer furit.