7 letters · 10 points in Scrabble
noun avoiding detection by moving carefully
originFrom Middle English stelthe, from Old English stǣlþ, from Proto-Germanic *stēliþō, to Proto-Germanic *stelaną (“to steal, to sneak”) + *-iþō, equivalent to steal + -th (abstract nominal suffix). Compare Old English stalu (“theft, stealth”), Old High German stāla (“theft”), German Diebstahl (“theft”).
Etymology from Wiktionary, CC BY-SA 3.0