miasma
Pronunciation: /mīˈazmə, mē-/
noun (plural miasmas or miasmata /-mətə/)
literary
1 A highly unpleasant or unhealthy smell or vapor: a miasma of stale alcohol hung around him like marsh gas
1.1 An oppressive or unpleasant atmosphere that surrounds or emanates from something: a miasma of despair rose from the black workshops
Origin
mid 17th century: from Greek, literally 'defilement', from miainein 'pollute'.
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I was surrounded, yes, immersed in a miasma of uncertainty as I tried to come up with a graphic to illustrate today's word. Then, there it was!