Strong's #4858: massa'ah (pronounced mas-saw-aw')
 from 5375; a conflagration (from the rising of smoke):--burden.
Brown-Driver-Briggs Hebrew Lexicon:
 ּׂ 
  maśśâ'âh 
 
 1) the uplifted, uplifting
 
  Part of Speech: noun feminine
Relation: from H5375
Usage:
This word is used 1 times:
Isaiah 30:27: "from far, burning with his anger,  and the burden thereof is heavy: his lips are full"