12 letters · 21 points in Scrabble
verb remove caffeine from (coffee)
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 caffeine Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-tós Proto-Indo-European *-eh₂tos Proto-Italic *-ātos Latin -ātuslbor. English -ate English decaffeinate From de- + caffeine + -ate (verb-forming suffix).
Etymology from Wiktionary, CC BY-SA 3.0