7 letters · 7 points in Scrabble
noun the quality of being united into one
originFrom Middle English oonnesse, onnesse, from Old English ānnes (“oneness, unity, agreement, covenant, solitude”), from Proto-West Germanic *ainnassī (“oneness”), equivalent to one + -ness. Cognate with Old High German einnissī, einnissa (“unity, oneness”).
Etymology from Wiktionary, CC BY-SA 3.0