ambaron(ambarón-)

as in "g.sg. ambarónen", in LotR-style Quenya this would be a dative singular noun "uprising, sunrise, Orient" AMsup2/sup. - In the Etymologies as printed in LR, the form ambaron also appears in the entry MBAR, but according to VT45:33 this is an error for ambaren, apparently intended as the genitive singular of ambar in LotR-style Quenya it would rather be the dative singular.