A Doriathrin word for “east”, derived from the root ᴹ√RAD “back, return” (Ety/RAD). It could have developed from primitive forms like *✶radon or *✶radn(ǝ), with -on developing in the second example because [o] developed between a consonant and a final [n] in Ilkorin. As noted by Helge Fauskanger (AL-Doriathrin/radhon), the sense “east” probably developed from the meaning “back” because the Elves thought of themselves as facing West when marking directions, so that East was behind them.