12 letters · 15 points in Scrabble
noun the condition of being folded inward or sheathed
noun the folding in of an outer layer so as to form a pocket in the surface
noun (psychology) an introverted disposition; concern with one's own thoughts and feelings
originFrom New Latin intrōversio, from intrōvertere (“to turn within”), from Classical Latin intro (“within”) and vertere (“to turn”). Equivalent to introvert + -sion or intro- + -version.
Etymology from Wiktionary, CC BY-SA 3.0