Strong's #1207: bitstsah (pronounced bits-tsaw')
intensive from 1206; a swamp:--fen, mire(-ry place).
Brown-Driver-Briggs Hebrew Lexicon:
ּּ
bitstsâh
1) swamp, marsh
Part of Speech: noun feminine
Relation: intensive from H1206
Usage:
This word is used 3 times:
Job 8:11: "Can the rush grow up without mire? can the flag grow without water?"
Job 40:21: "the shady trees, of the reed, and fens."
Ezekiel 47:11: " But the miry places thereof and the marshes thereof shall not they shall be given to salt."