6 letters · 10 points in Scrabble
adverb in an accurate manner
originFrom Middle English arighten, arihten (“to raise up”); and Middle English iriȝten, irihten, ȝerihten (“to make right, correct, erect”), from Old English ġerihtan (“to set right”), equivalent to a- + right.
Etymology from Wiktionary, CC BY-SA 3.0