12 letters · 18 points in Scrabble
noun the lower side of anything
originEtymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Indo-European *(H)n̥dʰí Proto-Indo-European *-ér Proto-Indo-European *(H)n̥dʰér Proto-Germanic *under Proto-West Germanic *undar Old English under- Middle English under- English under- Middle French surfacebor. English surface English undersurface From under- + surface.
Etymology from Wiktionary, CC BY-SA 3.0