Feminine nominative singular (also, according to Adler, in the Ambrosian Lexicon) and feminine dative plural of this adjective (epsilon 13). Both are presumably extracted from somewhere. In epic poetry, the first syllable is lengthened metri gratia to epsiloniota or eta; other poets use the contracted form ἠρινός : see epsiloniota 11 and LSJ s.v. (web address 1).