9 letters · 17 points in Scrabble
noun ignorance (especially of orthodox beliefs)
adjective unaware because of a lack of relevant information or knowledge
originEtymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Germanic *un- Proto-West Germanic *un- Old English un- Middle English un- English un- English knowing English unknowing From un- + knowing.
Etymology from Wiktionary, CC BY-SA 3.0