BDB2887
חֵמָר noun [masculine] bitumen, asphalt (from I. חמר according to OBlauZMG 1869, 279, bitumen as seething, swelling up; Thes MV, from IV. חמר, with reference to reddish-brown colour) — חֵמָר Gen 11:3 + 2 t.; used for cement in building Babel Gen 11:3 ( J ); abounding in vale of Siddim ׳ בֶּאֱרֹת בֶּאֱרֹת ח Gen 14:10 used in coating Moses' 'ark' of bulrushes Exod 2:3 ( E ; || זָ֑פֶת).