[1] The headword is masculine (and neuter) dative singular, aorist middle participle, of the verb e)ndei/knumi (cf. epsilon 1164). It must be quoted from somewhere; there are extant possibilities, outside lexica, in Isocrates, Julian, and Gregory of Nyssa. For the glossing cf. Hesychius epsilon2751 on e)ndei/comai in Homer, Iliad 19.83, and the scholia to that passage.
[2] For another sense of this noun see epsilon 1169, epsilon 1170, epsilon 1171.