13 letters · 20 points in Scrabble
noun restoring compressed information to its normal form for use or display
noun relieving pressure (especially bringing a compressed person gradually back to atmospheric pressure)
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 compression English decompression From de- + compression.
Etymology from Wiktionary, CC BY-SA 3.0