12 letters · 17 points in Scrabble
originEtymology tree Proto-Indo-European *h₁én Proto-Indo-European *h₁entér Proto-Italic *n̥ter Latin inter Latin inter-bor. English inter- Latin convertōder. Old French convertirbor. Middle English converten English convert English interconvert From inter- + convert.
Etymology from Wiktionary, CC BY-SA 3.0