15 letters · 20 points in Scrabble
noun the removal of contaminants
originEtymology tree Proto-Indo-European *de Proto-Indo-European *-h₁ Proto-Indo-European *déh₁ Proto-Italic *dē Latin dē Latin dē-der. English de- English contamination English decontamination From de- + contamination.
Etymology from Wiktionary, CC BY-SA 3.0